(3aS,5aS,6R,7R,9aS,9bS)-7-Hydroxy-3a,6,9a-trimethyl-2-oxo-3-(1,5,9-trimethyl-decyl)-dodecahydro-cyclopenta[a]naphthalene-6-carboxylic acid methyl ester 在
吡啶 、
chromium(VI) oxide 作用下,
以
丙酮 为溶剂,
反应 0.17h,
以18 mg的产率得到(3aS,5aS,6R,9aS,9bS)-3a,6,9a-Trimethyl-2,7-dioxo-3-(1,5,9-trimethyl-decyl)-dodecahydro-cyclopenta[a]naphthalene-6-carboxylic acid methyl ester