cis-4a-cisoid-4a,4b-trans-4b-3-(tert-butyldimethylsilyloxy)-1,4,4a,4b,5,6,7,8,8a,10,10a-dodecahydro-2,4b-dimethylphenanthrene-10α-ol 在
吡啶 、
三氯氧磷 作用下,
反应 24.0h,
以50%的产率得到cisoid-4a,4b-trans-4b-3-(tert-butyldimethylsilyloxy)-1,4,4a,4b,5,6,7,8,8a-decahydro-2,4b-dimethylphenanthrene