Amsonin

Amsonine

beta-Yohimbine

methyl (16alpha,17beta)-17-hydroxyyohimban-16-carboxylate

2-hydroxy-1,2,3,4,4a,5,7,8,13,13b,14,14a-dodecahydroisoquinolino[3,2-a]$b-carboline-1-carboxylic acid methyl ester