Publications Lu, S.-T., Su, T.-L. and Duh, C.-Y. (1979) Studies on the alkaloids of Formosan Lauraceous plants XXIV. Alkaloids of Litsea akoensis and Litsea kawakami, J. Taiwan Pharm. Soc., 31, 23-27. Fiebig, M., Duh, C.-Y., Pezzuto, J.M., Kinghorn, A.D., and Farnsworth, N.R. (1985) Plant anticancer agents XLI. Cardiac glycosides from Streblus asper, J. Nat. Prod., 48, 981-985. Duh, C.-Y., Phoebe, C.H., Pezzuto, J.M., Kinghorn, A.D., and Farnsworth, N.R. (1986) Plant anticancer agents XLII. Cytotoxic constituents from Wikstroemia elliptica, J. Nat. Prod., 49, 706-709. Duh, C.-Y., Pezzuto, J.M., Kinghorn, A.D., Leung, S.L., and Farnsworth, N.R. (1987) Plant anticancer agents XLIV. Cytotoxic constituents from Stizophyllum riparium, J. Nat. Prod., 50, 63-74. Kingston, D.G.I., Piccariello, T., Duh, C.-Y., Govindan, S.V., Wilkins, T.D., van Tassell, R.L., der Gen, A.V., De Wit, P.P., and der Steeg, M.V. (1988) On the stereochemistry of fecapentaene-12, J. Nat. Prod., 51, 176-179. Kingston, D.G.I., Duh, C.-Y, Piccariello, T. Keyes,R.F., Vantassell, R.L., Wilkins, T.D. (1989) Isolation and structure elucidation of plasmalopentaene-12, the biological precursor of fecapentaene-12, Tetrahedron Lett., 30, 6665-6668. Wu, Y.-C., Kao, S.-C., Huang, J.-F., Duh, C.-Y., and Lu, S.-T. (1990) Two phenanthrene alkaloids from Fissistigma glaucescens, Phytochemistry, 29, 2387-2388. Duh, C.-Y., Wu, Y.-C., and Wang, S.-K.(1990) Cytotoxic pyridone alkaloids from Piper aborescens, Phytochemistry, 29, 2689-2691. Wu, Y.-C., Duh, C.-Y., Wang, S.-K., Chen, K.-S., and Yang, T.-S. (1990) Two new azafluorene alkaloids and a cytotoxic aporphine alkaloids from Polyalthia longifolia, J. Nat. Prod., 53, 1327-1331. Duh, C.-Y., Wu, Y.-C., and Wang, S.-K. (1990) Cytotoxic pyridone alkaloids from the leaves of Piper aborescens, J. Nat. Prod., 53, 1575-1577. Duh, C.-Y., Wang, S.-K., Wu, Y.-C. (1990) New cytotoxic pyridone alkaloids from Piper aborescens, Planta Medica, 56, 524. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C. (1991) Cytotoxic pyranocoumarins from Peucedanum japonicum, Phytochemistry, 30, 2812-2814. Wu, Y.-C., Duh, C-.Y., Chang, F.-R., Chang, K.-Y., Wang, S.-K., Chang, J.-C., McPhail, D.R., McPhail A.T., and Lee K.-H. (1991), The crystal structure and cytotoxicity of goniodiol-7-monoacetate from Goniothalmus amuyon, J. Nat. Prod., 54, 1077-1081. Wu, Y.-C., Liou, J.-Y., Duh, C.-Y., Lee, S.-S., and Lu, S.-T. (1991) Litebamine, a novel phenenthrene alkaloid from Litsea cubeba, Tetrahedron Lett., 32, 4169-4170. Duh, C.-Y., Kinghorn, A.D., and Pezzuto, J.M. (1991) Cell-cycle specific cytotoxicity mediated by stizophyllin (2,3,12-trihydroxypregna-4,7,16-trien-2-one), a novel electrophilic pregnane isolated from Stizophyllium riparium, Chem.-Biol. Interactions, 80, 43-56. Wu, Y.-C., Chang, F.-R., Duh, C.-Y., and Wang, S.-K. (1992) Annoreticuin and isoannoreticuin, two new cytotoxic acetogenins from Annona reticulata, Heterocycle, 34, 667-674. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C. (1992) Cytotoxic pyranocoumarins from roots of Peucedanum japonicum, Phytochemistry, 31, 1829-1830. Wu, Y.-C., Chang, F.-R., Duh, C.-Y., Wang, S.-K., and Wu, T.-S. (1992) Cytotoxic styrylpyrones of Goniothalmus amuyon, Phytochemistry, 31, 2851-2853. Wu, Y.-C., Hsieh, P.-W., Duh, C.-Y., and Wang, S.-K. (1992) Cytotoxic cembrene diterpenes from the soft coral Sarcophyton trocheliophorum, J. Chin. Chem. Soc., 39, 355-357. Wang, S.-K., Duh, C.-Y.,* Wu, Y.-C., Cheng, M.-C., Wang, Y., Soong, K., and Fang, L.-S. (1992) Cytotoxic cembranolides from the soft coral Lobophytum michaelae, J. Nat. Prod., 55, 1430-1435. Lee, W.-S. and Duh, C.-Y. (1993) Sesquiterpene lactones from Neolitsea villosa, Phytochemistry, 32, 1503-1507. Wu, Y.-C., Chang, G.-Y., Duh, C.-Y., and Wang, S.-K. (1993) Cytotoxic alkaloids from Annona montana, Phytochemistry, 33, 497-500. Duh, C.-Y., Wang, S.-K., Hou, R.-S., Wang, Y., Lee, H.-S.,Wu, Y.-C., and Chang, T.-C. (1993) Dehydroodorin, a cytotoxic diamide from Aglaia formosana, Phytochemistry, 34, 857-858. Duh, C.-Y. and Wang, S.-K. (1993) Cytotoxic pyranocoumarins from Peucedanum japonicum roots, Acta Horticulturae, 333, 185-190. Chang, F.-R., Wu, Y.-C., Duh, C.-Y., and Wang, S.-K. (1993) Cytotoxic acetogenins from Annona reticulata, J. Nat. Prod., 56, 1688-1694. Duh, C.-Y., Wang, S.-K., Hou, R.-S., Chang, T.-C., Wang, Y., Cheng, M.-C., Soong, K. ,and Fang, L.-S. (1993) Cytotoxic norcembranes from the soft coral Sinularia polydactyla, Chin. Pharm. J., 45, 399-407. Hou, R.-S., Duh, C.-Y.,* Wang, S.-K., and Chang, T.-C. (1994) Cytotoxic flavonoids from the leaves Melicope triphylla, Phytochemistry, 35, 271-272. Duh, C.-Y., Wang, S.-K., Soong, K. ,and Fang, L.-S. (1994) Cytotoxic norcembranes from the soft coral Sinularia inexplicita, Chin. Pharm. J., 46, 423-428. Duh, C.-Y., Hou, R.-S., Liu, C.-H., and Soong, K. (1995) Potential anticancer cembranoid diterpenes from a Formosan soft coral Sinularia flexibilis, Acta Oceanographica Taiwanica, 34, 71-78. Hou, R.-S., Duh, C.-Y.,* Chang, M.Y., and Lin, C.-N. (1995) Sinugibberol, a new cytotoxic cembranoid diterpene from the soft coral Sinularia gibberosa, J. Nat. Prod., 58, 1126-1130. Shen, Y.- C., Duh, C.-Y., Tai, H.-R., Lin, S.-L, and Huang, T.-H. (1995) Isolation, structure elucidation and Biological activities of antitumor agents from Formosan marine spongs, Asian Fisheries Society Special Publication, No 10, 217-230. Sheu, J.H., Liaw, C.C., and Duh, C.-Y. (1995) Oxygenated clerosterols isolated from the marine alga Codium arabieum, J. Nat. Prod., 58, 1521-1526. Shen, Y.- C., Tai, H.-R., and Duh, C.-Y. (1995) Bioactive meroditerpenoids from Heliclona a Formosan marine sponge, Strongylophora durassima, J. Fish. Soc. Taiwan, 22, 365-374 Hou, R.-S., Duh, C.-Y., Wang, S.-K., and Chang, T.-C. (1995), Cytotoxic flavonoids from the leaves Melicope triphylla, Phytochemistry, 35, 271-272. (SCI) Chen, I.-S., Chang, C.-T., Cheen, W.-S., Teng, C.-M., Tsai, I.-L., Duh, C.-Y., and Ko, F.-L. (1996), Coumarins and antiplatelet aggregation constituents from Formosan Pseucedanum japonicum, Phytochemistry, 41, 525-530. (SCI) Sheu, J.-H., Huang, S.Y., and Duh, C.Y. (1996), Cytotoxic constituents from the Formosan marine alga Galaxaura marginata, J. Nat. Prod., 59, 23-26. (SCI) Shen, Y.-C., Tai, H.-R., and Duh, C.-Y. (1996), Bioactive constituents from Heliclona sp., a Formosan marine sponge, Chin. Pharm. J., 48, 1-10. Duh, C.-Y. and Hou, R.-S. (1996), Cytotoxic cembranoids from the Formosan soft corals Sinularia gibberosa and Sarcophyton trocheliophorum, J. Nat. Prod., 59, 595 -598. (SCI) Chen, J.-J., Ishikawa, T., Duh, C.-Y., Tsai, I.-L., Chen, I.-S. (1996), New dimeric aporphine alkaloids and cytotoxic constituents of Hernandia nymphaeifolia, Planta Medica, 62, 528-534. (SCI) Tsai, I.-L., Hsieh, C.-F., Duh, C.-Y., and Chen, I.-S. (1996), Cytotoxic neolignans from Persea obovatifolia, Phytochemistry, 43, 1261-1263. (SCI) Sheu, J.-H., Sung, P.-J., Huang, L.-H., Lee, S.-F., Wu, T., Chang, B.-Y., Duh, C.-Y., Fang, L.-S., Soong, K. and Lee, T.-J. (1996), New cytotoxic Briarian diterpene fromt the Formosan Gorgonian Briareum sp., J. Nat. Prod., 59, 935-938. (SCI) Chen, I.-S., Chen, J.-J., Duh, C.-Y., Tsai, I.-L., and Chang, C.-T. (1997), New aporphine alkaloids and cytotoxic constituents of Hernandia nymphaeifolia, Planta Medica, 63, 154-158. (SCI) Chen, I.-S., Chen, J.-J., Duh, C.-Y., and Tsai, I.-L. (1997), Cytotoxic lignans from Hernandia nymphaeifolia, Phytochemistry, 45, 991-996. (SCI) Sheu, J.-H., Huang, S.-Y., Wang, K.-H., and Duh, C.-Y. (1997), Study on cytotoxic oxgenated desmosterols isolated from the red alga Galaxaura marginata, J. Nat. Prod., 60, 900-903. (SCI) Sheu, J.-H., Wang, G.-H., Sung, P.-J., Chiu, Y.-H., and Duh, C.-Y. (1997), Cytotoxic sterols from the Formosan Brown Alga Turbinaria ornata, Planta Medica, 63, 571-572. (SCI) Shen, Y.-C., Chein, C.-C., Hsieh, P.-W. and Duh, C.-Y. (1997), Bioactive constituents from Formosan marine spong Aaptos aaptos, J. Fish Soc., Taiwan, 24, 121-126. Duh, C.-Y., Wang, S.-K., Cheu, M.-J., Dai, C.-F. and Sheu, J.-H. (1997), Bioactive sterols from the Formosan soft coral Nephthea erecta, J. Fish. Soc.Taiwan, 24, 127-135. Duh, C.-Y., Wang, S.-K., Tseng, H.-K.,and Sheu, J.-H. (1998), A novel cytotoxic biscembranoid from the Formosan soft coral Sinularia flexibilis, Tetrahedron Lett., 39, 7121-7122. (SCI) Duh, C.-Y., Wang, S.-K., Tseng, H.-K., Sheu, J.-H., and Chiang, M.Y. (1998), Novel cytotoxic cembranoids from the Formosan soft coral Sinularia flexibilis, J. Nat. Prod., 61, 844-847. (SCI) Duh, C.-Y., Wang, S.-K., Chu, M.-J., and Sheu, J.-H. (1998), Novel cytotoxic cembranoids from the soft coral Nephthea erecta, J. Nat. Prod., 61, 1022-1024. (SCI) Tsai, I.-L., Hsieh, C.-F. and Duh, C.-Y. (1998), Additional cytotoxic neolignans from Persea obovatifolia, Phytochemistry, 48, 1371-1375. (SCI) Chen, I.-S., Lai-Yaun, I.L., Duh, C.-Y., and Tsai, I.-L. (1998), Cytotoxic butanoilide from Litsea akoensis, Phytochemistry, 49, 745-750. (SCI) Sheu, J.-H., Sung, P.-J., Cheng, M.-C., Liu, H.-Y., Fang, L.-S., Duh, C.-Y., and Chiang, M. Y. (1998), Novel Cytotoxic Diterpenes, excavatolides A-E, isolated from the Formosan Gorgonian Briareum excavatum, J. Nat. Prod., 61, 602-608. (SCI) Duh, C.-Y., Wang, S.-K., Chai, M.-C., Chang, M.Y.(1999), A novel cytotoxic norditerpeneoid from the Formosan soft coral Sinularia inelegans, Tetrahedron Lett., 40, 6033-6035. (SCI) Sheu, J.-H., Sung, P.-J., Su, J.-H., Liu, S.-Y., Duh, C.-Y., and Chiang, M.-Y. (1999) Briaexcavatolides A-J, new diterpenes from the Formosan gorgonian Briareum excavatum, Tetrahedron, 55, 14555-14564. (SCI) Duh, C.-Y., Wang, S.-K., Wong, Y.-L., Chang, M. Y., and Dai, C.-F. (1999), Cytotoxic terpeneoids from the Formosan soft coral Nephthea brassica, J. Nat. Prod., 62., 1518-1521. (SCI) Sheu, J.-H., Wang, G.-H., Sung, P.-J., and Duh, C.-Y. (1999) New Cytotoxic oxygenated fucosterols from the Formosan brown alga Turbinaria coides, J. Nat. Prod. , 62, 224-227. (SCI) Sung, P.-J. ,Su, J.-H. ,Wang, G. H., Duh,C.-Y. and Sheu,J.-H. (1999) "New Briarane Diterpenes, Excavatolides F-M, from the Formosan Gorgonian Briareum excavatum" J. Nat. Prod. 62, 457-463. (SCI) Sheu, J.-H., Chang, K.-C. , Sung, P.-J. and Duh, C.-Y. (1999) "Chemical Constituents from a Formosan Soft Coral Sinularia sp." J. Chin. Chem. Soc. 46, 253-257. (SCI) Shen, Y.-C., Chen, C.-Y., Duh, C.-Y. (1999), New sesquiterpenes from Taiwanese sponge of the genus Parahigginsia, J. Chin. Chem. Soc. 46, 201-204. (SCI) Chen, C.-Y., Shen, Y.-C., Sheu, J.-H., and Duh, C.-Y. (1999), Bioactive sesquiterpenes from Taiwanese sponge Parahigginsia, sp. J. Nat. Prod. , 62, 573-576. (SCI). Sheu, J. H., Sung, P. J. ,Su, J. H. ,Wang, G. H. , Duh,C. Y., Shen, Y. C., Chiang, M.Y., and Chen, I.-T. (1999) "Excavatolides U-Z, New Briarane Diterpenes from the Gorgonian Briareum exavatum" J. Nat. Prod. 62. 1415-1420. (SCI) Chen, J.-J., Duh, C.-Y., and Chen, I.-S. (1999) New tetrahydroprotoberberine N-oxide alkaloids and cytotoxic constituents of Corydalis tashiroi, Planta Medica, 65, 643-647. (SCI) Tsai, I.-L., Hsieh, C.-F., Duh, C.-Y., and Chen, I.-S. (1999) Further study on the chemical constituents and their cytotoxicity from the leaves of Persea obovatifolia, Chin. Pharm. J., 51, 335-358. Shen, Y.-C., Lin, T.-T., Sheu, J.-H., and Duh, C.-Y. (1999) Strcture and cytotocxicity relationship of isoaaptamine and aaptamine derivatives, J. Nat. Prod., 62, 1264-1267. (SCI) Duh, C.-Y., Wang, S.-K., Huang, B.-T., and Dai, C.-F. (2000) Cytotoxic cembranolide diterpenes from the Formosan soft coral Lobophytum crassum, J. Nat. Prod., 63, 884-885. (SCI) Chai, M.-C., Wang, S.-K., Dai, C.-F., and Duh, C.-Y.* (2000), A cytotoxic lobane diterpene from the Formosan soft coral Sinularia inelegans, J. Nat. Prod., 63, 843-844. (SCI) Tsai, I.-L., Chen, J.-H., Duh, C.-Y., and Chen, I.-S.(2000) Cytotoxic neolignans from the stem wood of Machilus obovatifoli. Planta Medica, 66, 403-407. (SCI) Wang, S.-K., Duh, C.-Y., and Chang, T.-C. (2000) Cloning and identification of regulatory gene UL76 of human cytomegalovirus, J. Gen.Virol., 81, 2407-2416. (SCI) Duh, C.-Y., Wang, S.-K., and Weng, Y.-L. (2000) Brassicolene, a novel diterpene from the Formosan soft coral Nephthea brassica, Tetrahedron Lett., 41, 1401-1403. (SCI) Sheu, J.-H., Chang, K.-C., and Duh, C.-Y. (2000) A cytotoxic 5,8-epidioxysterol from a Formosan soft coral Sinularia species, J. Nat. Prod., 63, 149-151. (SCI) Duh, C.-Y., Wang, S.-K. and Chen, I.-S. (2000) Cytotoxic prenyleudesmane diterpenes from the fruits of Dysoxylum kuskusense, J. Nat. Prod., 63, 1546-1547. (SCI) Sheu, J.-H., Hong, K.-J., Wang, G.-H., and Duh, C.-Y. (2000) Cytotoxic sesquiterpenes the Formosan gorgonian from Isis hippuris, J. Nat. Prod., 63, 1603-1607. (SCI) Duh, C.-Y., Wang, S.-K., Chung, S.-G., Chou, G.-C., and Dai, C.-F. (2000) Cytotoxic cembranolides and steroids from the Formosan soft coral Sarcophyton crassocaule, J. Nat. Prod., 1634-1637. (SCI) Shen, Y.-C., Chen, C.-Y., Chen, Y.-R., Duh, C.-Y., and Hung, M.-H., (2000) Cytotoxicity of taxoids isolated from the seeds of Taxus mairei and T. chinensis Chin. Pharm. J., 52, 219-226. Tsai, I.-L., Chen, J.-H., Duh, C.-Y., and Chen, I.-S., (2000), Chemical constituents from the leaves of Formosan Ficus septica, Chin. Pharm. J., 52, 195-202. Tsai, I.-L., Lai-Yaun, I-L., Duh, C.-Y., Jeng, Y.-F., and Chen, I.-S., (2000), A new cytotoxic butanolide from the stem bark of Litsea akoensis, Chin. Pharm. J., 52, 195-202. Wang, S.-K., Cheng, Y.-J., and Duh, C.-Y.,* (2001). Cytotoxic constituents from leaves of Aglaia elliptifolia, J. Nat. Prod., 64, 92-94. Wang, S.-K. and Duh, C.-Y.,* (2001) Cytotoxic cyclopenta[b]bezofuran derivatives from the stem bark of Aglaia formosana, Planta Meidica, 67, 555-556. Tsai, I.-L., Chen, J.-H., Duh, C.-Y., and Chen, I.-S., (2001) Cytotoxic neolignans and butanolids from Machilius obovatifolia, Planta Meidica, 67, 559-560. Duh, C.-Y., Chia, M.-C., Wang, S.-K., Chen, H.-J., El-Gamal, A.A.H., and Dai, C.-F., (2001) Cytotoxic dolabellane diterpenes from the Formosan soft coral Clavularia inflata, J. Nat. Prod., 64, 1028-1031. Sheu, J.-H., Wang, G.-H., Sung, P.-J., Duh, C.-Y., and Chiang, M.Y., (2001) Pachyclavulariolides G-L and secopachyclavulariaenone A, seven novel diterpenes from the soft coral Pachiclavularia vilaceae. Tetrahedron, 57, 7369-7348. Duh, C.-Y., Chen, K.-J., Wang, S.-K., El-Gamal, A.A.H., and Dai, C.-F., (2001) Cytotoxic sesquiterpenes from the Formosan soft coral Tubipora musica, J. Nat. Prod., 64, 1430-1433. Cheng, H.-I., Lin, W.-Y., Duh, C.-Y., Lee, K.-H., Tsai, I.-L., and Chen, I.-S. (2001) New Cytotoxic Butanolides from Litsea acutivena, J. Nat. Prod., 64, 1502-1505. Chen, S.-P., Sung, P.-J., Duh, C.-Y., Dai, C.-F. Sheu, J.-H (2001) Junceol-A, a New Sesquiterpenoid from the Formosan Sea Pen Virgularia-Juncea J. Nat. Prod., 64, 1241-1242. Sung, P.-J., Su, J.-H, Duh, C.-Y., Dai, C.-F. Sheu, J.-H (2001) Briaexcavatolides K-N, New Briarane Diterpenes from the Formosan Gorgonian Briareum-Excavatum J. Nat. Prod., 64, 318-323. Duh, C.-Y., El-Gamal, A.A.H., Wang, S.-K., and Dai, C.-F., (2002) Cytotoxic terpenoids from the Formosan soft coral Cespitularia hypotentaculata, J. Nat. Prod., in press. (SCI) Duh, C.-Y., El-Gamal, A.A.H., Chu, C.-J., Wang, S.-K., and Dai, C.-F., (2002) Cytotoxic constituents from the Formosan soft coral Clavulara viridis and Clavularia violacea, J. Nat. Prod., in press. (SCI) Duh, C.-Y., El-Gamal, A.A.H., Chiang, C.Y., Chu, C.-J., Wang, S.-K., and Dai, C.-F., (2002) Cytotoxic Xenia diterpenoids from the Formosan soft coral Xenia umbellata, J. Nat. Prod., submitted. (SCI) Duh, C.-Y., Song, P.-Y., Wang, S.-K., and Dai, C.-F., (2002) New sesquiterpenoids from the Formosan soft coral Lemnalia cervicorni, J. Nat. Prod., submitted. (SCI) Duh, C.-Y., Chien, S.-C., Wang, S.-K., and Dai, C.-F., (2002) New cadinene sesquiterpenoids from the Formosan soft coral Xenia Puerto-galerae, J. Nat. Prod., submitted. (SCI) J. J. Chen, R. W. Lin, C. Y. Duh, H. Y. Huang, and I. S. Chen, (2004), ”Flavones and Cytotoxic Constituents from the Stem Bark of Muntingia calabura.” J. Chin. Chem. Soc., 51, 665-670. (SCI) J. J. Chen, H. Y. Huang, C. Y. Duh, and I. S. Chen, (2004), ”Cytotoxic Constituents from the Stem Bark of Zanthoxylum pistaciiflorum.” J. Chin. Chem. Soc., 51, 659-663. (SCI) Ali A. H. El-Gamal, S. K. Wang, and C. Y. Duh, (2004), “New Diterpenoids from Viburnum awabuki.” J. Nat. Prod., 67, 333-336. S. K. Wang, C. Y. Duh, and C. W. Wu, (2004), ”Human Cytomegalovirus UL76 Encodes a Novel Virion-Asociated Protein That Is Able to Inhibit Viral Replication.” J. Virology., 78(18), 9750-9762. (SCI) Ali A. H. E. Gamal, S. K. Wang, C. F. Dai, and C. Y. Duh, (2004), ”New Nardosinanes and 19-Oxygenated Ergosterols from the Soft Coral Nephthea armata Collected in Taiwan.” J. Nat. Prod., 67, 1455-1458. (SCI) G. H. Wang, J. H. Su, C. T. Chen, C. Y. Duh, C. F. Dai, and J. H. Sheu, (2004), ”Novel Polyhydroxysteroids from the Formosan Soft Coral Sarcophyton glaucum.” J. Chin. Chem. Soc., 51, 217-220. (SCI) C. Y. Duh, Ali A. H. E. Gamal, P. Y. Song S. K. Wang, and C. F. Dai, (2004), ”Steroids and Sesquiterpenoids from the Soft Corals Dendronephthya gigantean and Lemnalia cervicorni.” J. Nat. Prod., 67, 1650-1653. (SCI) CONFERENCE PAPERS: Duh, C.-Y., Phoebe, C.H., Pezzuto, J.M., Kinghorn, A.D., and Farnsworth, N.R., Cytotoxic constituents from Wikstroemia elliptica, 25th Annual Meeting of American Society of Pharmacognosy, August 19-23, 1984, Austin, Texas, U.S.A. Fiebig, M., Duh, C.-Y., Pezzuto, J.M., Kinghorn, A.D., and Farnsworth, N.R., Cardiac glycosides from Strebulus asper, International Rsearch Congress on Natural Products, July 6-12, 1985, Chapel Hill, North Carolina, U.S.A. Duh, C.-Y., Pezzuto, J.M., Kinghorn, A.D., and Farnsworth, N.R., Novel cytotoxic triterpene esters from Stizophyllum riparium, 27th Annual Meeting of American Society of Pharmacognosy, July 27-30, 1986, Ann Arbor, Michigan, U.S.A. Duh, C.-Y., Pezzuto, J.M., and Farnsworth, N.R., Characterization and mechanistic evaluation of stizophyllin, a new cytotoxic pregnane steroid from Stizophyllum riparium, 27th Annual Meeting of American Society of Pharmacognosy, July 27-30, 1986, Ann Arbor, Michigan, U.S.A. Duh, C.-Y., Pezzuto, J.M., Kinghorn, A.D., and Farnsworth, N.R., Phytochemical and mechanistic studies on constituents of Stizophyllum riparium, R.O.C.-Japan Symposium on Medicinal Chemistry, March 21-22, 1988, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., New cytotoxic pyridone alkaloids from Piper aborescens, 4th Symposium of Natural Products, August 17-18, 1989, Kaohsiung, Taiwan, R.O.C. Wu, Y.-C., Wu, T.-S., Duh, C.-Y., and Lu, S.-T., Alkaloids of Thalictrum sessil - Chemical structure and biological activities, Third Chinese-German Symposium on Pharmaceutical Chemistry and Medicinal Plant research, November 20-22, 1989, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., New cytotoxic pyridone alkaloids from Piper aborescens, International Symposium of Biology and Chemistry of Active Natural Substances, July 17-22, 1990, Bonn, Germany. Wu, Y.-C., Duh, C.-Y., Wang, S.-K., Chen, K.-S., and Yang, T.-S., Two new azafluorene alkaloids and a cytotoxic aporphine alkaloids from Polyalthia longifolia, 5th Symposium of Natural Products and Medicinal Chemistry, September 7-8, 1990, Kaohsiung, Taiwan, R.O.C. Wang, S.-K., Duh, C.-Y., Hou, R.-S., Wu, Y.-C., Lu, S.-T., and Chang, S.-F., Antiviral furoquinoline alkaloids from Melicope triphylla, Annual Meeting of Taiwan Pharmaceutical Society, November 17, 1990, Taichung, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., New cytotoxic pyridone alkaloids from Piper aborescens, Annual Meeting of Chinese Chemical Society, December 1-2, 1990, Hsinchu, Taiwan, R.O.C. Wu, Y.-C., Chang, F.-R., Chang, G.-Y., Duh, C.-Y., Wang, S.-K., and Lu, S.-T., Goniodiol monoacetate, a cytotoxic styrylpyrone from Goniothalmus amuyon, Annual Meeting of Chinese Chemical Society, December 1-2, 1990, Hsinchu, Taiwan, R.O.C. Wu, Y.-C., Chang, F.-R., Chang, G.-Y., Duh, C.-Y., Wang, S.-K., and Lu, S.-T., Cytotoxic principles from Goniothalmus amuyon, Annual Meeting of Taiwan Pharmaceutical Society, November 17, 1990, Taichung, Taiwan, R.O.C. Wu, Y.-C., Chen, K.-S., Duh, C.-Y., Wang, S.-K., Wu, T.-S., Kuo, C.-S., Lu, S.-T., and Lieu, L.-K., Alkaloids of Argemone mexicana, Annual Meeting of Taiwan Pharmaceutical Society, November 17, 1990, Taichung, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., New cytotoxic pyridone alkaloids from Piper aborescens, International Symposium of Biology and Chemistry of Active Natural Substances, July 17-22, 1990, Bonn, Germany. Wu, Y.-C., Duh, C.-Y., Wang, S.-K., Chen, K.-S., and Yang, T.-S., Two new azafluorene alkaloids and a cytotoxic aporphine alkaloids from Polyalthia longifolia, 5th Symposium of Natural Products and Medicinal Chemistry, September 7-8, 1990, Kaohsiung, Taiwan, R.O.C. Wang, S.-K., Duh, C.-Y., Hou, R.-S., Wu, Y.-C., Lu, S.-T., and Chang, S.-F., Antiviral furoquinoline alkaloids from Melicope triphylla, Annual Meeting of Taiwan Pharmaceutical Society, November 17, 1990, Taichung, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., New cytotoxic pyridone alkaloids from Piper aborescens, Annual Meeting of Chinese Chemical Society, December 1-2, 1990, Hsinchu, Taiwan, R.O.C. Wu, Y.-C., Chang, F.-R., Chang, G.-Y., Duh, C.-Y., Wang, S.-K., and Lu, S.-T., Goniodiol monoacetate, a cytotoxic styrylpyrone from Goniothalmus amuyon, Annual Meeting of Chinese Chemical Society, December 1-2, 1990, Hsinchu, Taiwan, R.O.C. Wu, Y.-C., Chang, F.-R., Chang, G.-Y., Duh, C.-Y., Wang, S.-K., and Lu, S.-T., Cytotoxic principles from Goniothalmus amuyon, Annual Meeting of Taiwan Pharmaceutical Society, November 17, 1990, Taichung, Taiwan, R.O.C. Wu, Y.-C., Chen, K.-S., Duh, C.-Y., Wang, S.-K., Wu, T.-S., Kuo, C.-S., Lu, S.-T., and Lieu, L.-K., Alkaloids of Argemone mexicana, Annual Meeting of Taiwan Pharmaceutical Society, November 17, 1990, Taichung, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., New cytotoxic pyranocoumarins from Peucedanum japonicum, International Research Congress on Natural Products, July 21-26, 1991, Chicago, Illinois, U.S.A. Chang, F.-R., Duh, C.-Y., Wang, S..-K., and Wu, Y.-C., Two novel acetogenins from Annona reticulata, Annual Meeting of Chinese Chemical Society, December 6-8, 1992, Taichung, Taiwan, R.O.C. Chang, G.-Y., Duh, C.-Y., Wu, T.-S., and Wu, Y.-C., Two new pyridine-b- carboline from Annona montana, Annual Meeting of Chinese Chemical Society, December 6-8, 1991, Taichung, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., Wu, Y.-C., and Soong, K., Cytotoxic norcembrene diterpenes from the soft coral Sinularia polydactyla, Annual Meeting of Chinese Pharmaceutical Society, December 14-15, 1991, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., Wu, Y.-C., and Soong, K., Cytotoxic cembrene diterpene from the soft coral Lobophytum michaelae, Annual Meeting of Chinese Pharmaceutical Society, December 14-15, 1991, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., Wu, Y.-C., and Soong, K., Cytotoxic norcembrene diterpenes from the soft coral Sinularia inexplicita, Annual Meeting of Chinese Pharmaceutical Society, December 14-15, 1991, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., Cytotoxic pyranocoumarins from Peucedanum japonicum, Annual Meeting of Chinese Pharmaceutical Society, December 14-15, 1991, Taipei, Taiwan, R.O.C. Hsieh, P.-W., Duh, C.-Y., Wang, S.-K., Wu, Y.-C., Soong, K., and Fang, L.-S., Cytotoxic cembrene diterpnenes from the soft coral Sarcophyton trocheliophorum, Annual Meeting of Chinese Pharmaceutical Society, December, 14-15, 1991, Taipei, Taiwan, R.O.C. Hou, R.-S., Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., Phytochemical and biological studies on the constituents of Melicope triphylla, Annual Meeting of Chinese Pharmaceutical Society, December 14-15, 1991, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., Wu, Y.-C., Soong, K., and Fang, L.-S., Cytotoxic norcembrene diterpenes from the soft coral Sinularia spp., 7th Asian Symposium of Medicinal Plants,Spices, and Other Natural Products, February 2-6, 1992, Manila, Philippines. Wu, Y.-C., Chang, F.-R., Duh, C.-Y., and Wang, S.-K., Cytotoxic acetogenins from Annona reticulata, 7th Asian Symposium of Medicinal Plants, Spices, and Other Natural Products, February 2-6, 1992, Manila, Philippines. Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., Cytotoxic pyranocoumarins from Peucedanum japonicum roots, First World Congress on Medicinal and Aromatic Plants for Human Welfare, July 19-25, 1992, Maastricht, Netherlands. Hsieh, P.-W., Duh, C.-Y., Wang, S.-K., Soong, K., Fang, L.-S., and Wu, Y.-C., Cytotoxic cembranolide from the soft coral Sinularia sp., 7th Symposium on Natural Products, August 14-15, 1992, Tainan, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., Wu, Y.-C, Wang, Y., Soong, K., and Fang, L.-S., Cytotoxic cembranoildes from the soft coral Lobophytum michaelae, 18th IUPAC Symposium on The Chemistry of Natural Products, August 30-September 4, 1992, Strasbourg, France. Wu, Y.-C., Chang, K.-Y., Duh, C.-Y., and Wang, S.-K., Alkaloids of Annona montana -Chemical structures and cytotoxicity,18th IUPAC Symposium on The Chemistry of Natural Products, August 30-September 4, 1992, Strasbourg, France. Chang, G.-Y., Duh, C.-Y., Wang, S.-K., Teng, C.-M., and Wu, Y.-C., Bioactive compounds from the stem of Annona montana, Annual Meeting of Chinese Pharmaceutical Society, December 7, 1992, Taipei, Taiwan, R.O.C. Chang, F.-R., Duh, C.-Y., Wang, S.-K., and Wu, Y.-C., Cytotoxic acetogenins from Annona reticulata (II), Annual Meeting of Chinese Pharmaceutical Society, December 7, 1992, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., Hou, R.-S., Wang, Y., Lee, H.-S., and Chang, T.-C., Dehydroodorin, a cytotoxic diamide from Aglaia formosana, Annual Meeting of Chinese Pharmaceutical Society, November 21, 1993, Taipei, Taiwan, R.O.C. Duh, C.-Y., Wang, S.-K., Hou, R.-S., Chang, T.-C., Wang, Y., Cheng, M.-C., Soong, K. ,and Fang, L.-S., Cytotoxic norcembranes from the soft coral Sinularia polydactyla, November 21, 1993, Taipei, Taiwan, R.O.C. Hou, R.-S., Duh, C.-Y., Wang, S.-K., Wang, Y., Lee, H.-S., and Chang, T.-C., Cytotoxic flavonoids from Melicope triphylla, November 21, 1993, Taipei, Taiwan, R.O.C. Shen, Y.-C., Duh, C.-Y., Tai, H.-R., Lin, S.-L., and Huang, T.-H., Isolation and characterization of antitumor substances from selected marine sponges, International Symposium on Biotechnology Application in Aquaculture, December 5-10, 1994, Taipei, Taiwan, R.O.C. Tsai, I.-L., Duh, C.-Y., Chen, J.-H., Sheen, W.-S., and Chen, Y.-S., Cytotoxic constitutents from Stercularia cermica, Annual Meeting of Chinese Pharmacertical Society, December 17, 1994, Kaohsiung, Taiwan, R.O.C. Shen, Y.-C., Duh, C.-Y., Tai, H.-R., Lin, S.-L., and Huang, T.-H., Isolation and characterization of antitumor substances from selected marine sponges, International Symposium on Biotechnology Application in Aquaculture, December 5-10, 1994, Taipei, Taiwan, R.O.C. Tsai, I.-L., Duh, C.-Y., Chen, J.-H., Sheen, W.-S., and Chen, Y.-S., Cytotoxic constitutents from Stercularia cermica, Annual Meeting of Chinese Pharmacertical Society, December 17, 1994, Kaohsiung, Taiwan, R.O.C. Duh, C.-Y., Bioactive Metabolites from Formosan Coral Reefs, Symposium of Marine Technology, December 17-18, 1994, Kaohsiung, Taiwan, R.O.C. Duh, C.-Y., and Wang, S.-K., New Cytotoxic cembranes from the soft coral Sinularia gibberosa, 36th Annual Meeting of Americam Society of Pharmacognosy, July 23-28, 1995, Oxford, Mississippi, U.S.A. Tsai, I.-L., Chen, J.-H., Duh, C.-Y., Sheen, W.-S., Chen, J.-J., and Chen, I.-S., Studies on the chemical constituents from Ficus septica, 10th Symposium on Natural Products, August 5, 1995, Kaohsiung, Taiwan, R.O.C. Tsai, I.-L., Hsieh, C.-F., Duh, C.-Y., Teng, C.-M., and Chen, I.-S., Studies on the bioactive principle from Persea obovatifolia, 10th Symposium on Natural Products, August 5, 1995, Kaohsiung, Taiwan, R.O.C. Hou, R.-S., Liou, G.-H., and Duh, C.-Y., Cytotoxic cembranoids from Formosan soft coral Sinularia gibberosa, Annual Meeting of Chinese Pharmaceutical Society, December 10, 1995, Taipei, Taiwan, R.O.C. Hou, R.-S., Liou, G.-H., and Duh, C.-Y., Cytotoxic cembranoids from Formosan soft coral Sinularia flexibilis, Annual Meeting of Chinese Pharmaceutical Society, December 10, 1995, Taipei, Taiwan, R.O.C. Hou, R.-S., Liou, G.-H., and Duh, C.-Y., Cytotoxic cembranoids from Formosan soft coral Sarcophyton trocheliophorum, Annual Meeting of Chinese Pharmaceutical Society, December 10, 1995, Taipei, Taiwan, R.O.C. Chu, M.-Z., Liou, G.-H., and Duh, C.-Y., Cytotoxic cembranoids from Formosan soft coral Nephthea sp. , Annual Meeting of Chinese Pharmaceutical Society, December 10, 1995, Taipei, Taiwan, R.O.C. Wang, S.-K., Wu, L.-F., Huang, M.-W., Chang, T.-T., and Duh, C.-Y., Localization of three regions in human cytomegalovirus (HCMV) strain AD169 that transcativate major immediate early genes promoter-enhancer-modulator, 29th Annual Meeting of Chinese Society of Microbiology, Dec. 9-10, 1995, Taipei, Taiwan, R.O.C. Wang, S.-K., Wu, L.-F., Huang, M.-W., Chang, T.-T., and Duh, C.-Y., Localization of three regions in human cytomegalovirus that transcativating major immediate-early genes promoter-enhancer-modulator, 4th Annual Symposium in Cellular and Molecular Biology, Feb. 3-5, 1996, Kenting, Pingtung, Taiwan, R.O.C. Wang, S.-K., Wu, L.-F., Huang, M.-W., Chang, T.-T., and Duh, C.-Y., Regulation of major immediate early genes promoter-enhancer by early phase expressed phosphoproteins in human cytomegalovirus,11th Joint Annual Conference of Biomedical Sciences, April 6-7, 1996, Taipei, Taiwan, R.O.C. Duh, C.-Y. and Wang, S.-K. Cytotoxic cembranloids from soft corals Sinularia gibberosa and Sarcophyton trecheliophoreum, 37th Annual Meeting of The American Society of Pharmacognosy, July 27-31, 1996, Santa Cruz, California, U.S.A. Wang, S.-K.and Duh, C.-Y. Evaluation of antiviral activities of tannin derivatives against human cytomegalovirus , 37th Annual Meeting of The American Society of Pharmacognosy, July 27-31, 1996, Santa Cruz, California, U.S.A Wang, S.-K., Wu, M.-F., Duh, C.-Y., and Chang, T.-T., Identification of mutiple viral regulatory elements in regulation of major immediate-early gene promotor/enhancer of human cytomegalovirus, 5th Annual Symposium in Cellular and Molecular Biology, Jan. 23-25, 1997, Kenting, Pingtung, Taiwan, R.O.C. Duh, C.-Y. and Wang, S.-K. Novel cytotoxic cembranloids from soft coral Sinularia flexibilis. 38th Annual Meeting of The American Society of Pharmacognosy, July 26-30, 1997, Iowa City, Iowa, U.S.A. Wang, S.-K. and Duh, C.-Y., Novel cytotoxic sterols from soft coral Nephthea erecta.. 38th Annual Meeting of The American Society of Pharmacognosy, July 26-30, 1997, Iowa City, Iowa, U.S.A. Chen, I.-S., Laiyun, I.-L., Duh, C.-Y., and Tsai, I.-L., Butanolides from Litsea akoensis, 12th Symposium on Natural Products, Sep 13, 1997, Kaohsiung, Taiwan, R.O.C.. Tsai, I.-L., Chen, G.-F., Duh, C.-Y., and Chen, I.-S., Chemical constituents from the stem of Persea obovatifolia, 12th Symposium on Natural Products, Sep 13, 1997, Kaohsiung, Taiwan, R.O.C.. Wong, Y.-L. and Duh, C.-Y., Cytotoxic constituents from soft corals Nephthea brassica, First symposium of marine natural products, March 14, 1998, Kaohsiung, Taiwan. Huang, B.-T., Chou, G.-C., and Duh, C.Y., Cytotoxic cembranoids from Lobophytum spp., First symposium of marine natural products, March 14, 1998, Kaohsiung, Taiwan. Chen, C.-Y., Duh, C.-Y., and Shen, Y.-C., Bioactive sesquiterpenes from a Taiwanese marine sponge Parahigginsia sp, First symposium of marine natural products, March 14, 1998, Kaohsiung, Taiwan. Duh, C.Y., Ga, M.C., Wang, Y.Y., and Duh, C.Y., A phenazine type antibiotics from marine fungus CL005, First symposium of marine natural products, March 14, 1998, Kaohsiung, Taiwan. Lin, C.S., Ga, M.C., Wang, Y.Y., and Lin, C.S.,Utilizing marine fungus CL005 for producing antibiotic, iodinin, First symposium of marine natural products, March 14, 1998, Kaohsiung, Taiwan. Lin, C.S., Ga, M.C., Wang, Y.Y., and Lin, C.S., Marine fungus as a new sources for producing antibiotic, iodinin, Annual Meeting of Chinese Society of Mocrobiology, December 14, 1998, Taipei, Taiwan. Duh, C.-Y. and Wang, S.-K., Novel cytotoxic cembranoids from the Formosan soft coral Nephthea brassica, 39th Annual Meeting of The American Society of Pharmacognosy, July 17-23, 1998, Orlando, Florida. Duh, C.-Y. and Wang, S.-K., Novel cytotoxic cembranoids from the Formosan soft coral Sinularia flexibilis, 39th Annual Meeting of The American Society of Pharmacognosy, July 17-23, 1998, Orlando, Florida. Tsai, I.-L., Hung, C.-H., Duh, C.-Y., Lin, W.-Y., and Chen, I.-S., Cytotoxic butanolides from Lindera communis, Annual Meeting of The Chinese Pharmaceutical Society, December 19, 1998, Taipie, Taiwan. Chen, J.-J., Duh, C.-Y., and Chen, I.-S., New tetrahydroprotoberberine N-oxide alkaloids and cytotoxic constituents of Corydalis tashiroi, Annual Meeting of The Chinese Pharmaceutical Society, December 19, 1998, Taipei, Taiwan. Duh, C.-Y., Novel cytotoxic secondary metabolites from Formosan octocorals, Annual Meeting of The Chinese Pharmaceutical Society, December 19, 1998, Taipie, Taiwan. Duh, C.Y. and Wang, S.K., A novel cytotoxic norditerpeneoid from the Formosan soft coral Sinularia inelegans, Symposium on 2000 years of Natural Products Research, July 26-30, 1999, Amsterdan, The Netherlands. Duh, C.Y. and Wang, S.K., Cytotoxic terpeneoids from the Formosan soft coral Nephthea brassica, Symposium on 2000 years of Natural Products Research, July 26-30, 1999, Amsterdan, The Netherlands. Annual Meeting of The American Society of Pharmacognosy, July 22-26, 2000, Seattle, U.S.A. Duh, C.-Y., Wang, S.-K.., Cytotoxic constituents from Formosan soft coral Lobophytum crassum, 41st Annual Meeting of The American Society of Pharmacognosy, July 17-23, 2000, Seattle, U.S.A. Duh, C.Y., Chen, K.J. , El-Gamal, A.A.H., and Dai, C.-F., Cytotoxic sesquiterpenes from Formosan stonifer Tubipora musica, 10th International Symposium on Marine Natural Products, June 24-29, 2001, Okinawa, Japan. Duh, C.Y., Chia, M.-C., Wang, S.-K., Chen, H.-J., El-Gamal, A.A.H., and Dai, C.-F., Cytotoxic dolabellane diterpenes from the Formosan soft coral Clavularia inflata, 10th International Symposium on Marine Natural Products, June 24-29, 2001, Okinawa, Japan.