3β-acetoxy-14,15-dioxo-14,15-seco-5β-card-20(22)-enolide 在
lithium tri-t-butoxyaluminum hydride 作用下,
以
四氢呋喃 为溶剂,
反应 24.0h,
以87%的产率得到Acetic acid (1R,4aS,4bR,6aR,8S,10aS,10bS,12aR)-4a-hydroxy-10a,12a-dimethyl-1-(5-oxo-2,5-dihydro-furan-3-yl)-hexadecahydro-4-oxa-chrysen-8-yl ester