4-DIMETHYLAMINO-O-TOLUALDEHYDE

4-(DIMETHYLAMINO)PHENYL ISOTHIOCYANATE

4-ETHYL-4-HYDROXY-3,4,12,14-TETRAHYDRO-1H-PYRANO[3'4':6,7]INDOLIZINO[1,2-B]QUINOLINE-3,14-DIONE

4-ETHYLBENZENE-1-CARBOHYDRAZIDE