3-[(3R,3aS,5aS,6R,9aS,9bS)-3-((R)-1,5-Dimethyl-hexyl)-3,3a,6-trimethyl-7-oxo-dodecahydro-cyclopenta[a]naphthalen-6-yl]-propionic acid methyl ester 在
吡啶 、
盐酸羟胺 作用下,
生成
3-{(3R,3aS,5aS,6R,9aS,9bS)-3-((R)-1,5-Dimethyl-hexyl)-7-[(E)-hydroxyimino]-3,3a,6-trimethyl-dodecahydro-cyclopenta[a]naphthalen-6-yl}-propionic acid methyl ester