(16E,19S)-17,19-Epoxy-coryn-16-ene-16-carboxylic acid methyl ester; delta-yohimbin (19S)-17,19-Epoxy-coryn-16-ene-16-carboxylic acid methyl ester (19alpha)-16,17-Didehydro-19-methyl-oxayohimban-16-carboxylic acid methyl ester 19alpha-Methyl-18-oxa-yohimb-16-ene-16-carboxylic acid methyl ester 483-04-5 8-Methyl-5,6,7a,8,11a,12,12a,13-octahydro-7H-9-oxa-6a,13-diaza-indeno[2,1-a]anthracene-11-carboxylic acid methyl ester Ajmalicine InChI=1/C21H24N2O3/c1-12-16-10-23-8-7-14-13-5-3-4-6-18(13)22-20(14)19(23)9-15(16)17(11-26-12)21(24)25-2/h3-6,11-12,15-16,19,22H,7-10H2,1-2H3/t12-,15?,16?,19?/m0/s methyl 19-methyl-16,17-didehydrooxayohimban-16-carboxylate oxayohimban-16-carboxylic acid, 16,17-didehydro-19-methyl-, methyl ester, (19alpha)-