1 x x x x x x x dec. 105-107 HRMS 2 x x x x x x x dec. 122-155 HRMS 3 x x x x x x x dec. 157-190 HRMS Reference to NMR data in literature Reference to melting point in literature New compounds Melting point Elemental analysis Rf value Melting point Compound UV-Vis MS IR C NMR 13 H NMR 1 Known New Systematic name given Compound number Additional file 1: Compound Characterization Checklist Known compounds