反应详情

Obtained from Intermediate 80 (10.6 g, 53 mmol) by the procedure described in Intermediate 12. Purification by column chromatography with silica gel eluting with ethyl acetate/n-hexane (from 1:4 to pute ethyl acetate) gave the title compound (10.7 g, 96%) as oil.

1. customPurification by column chromatography with silica gel eluting with ethyl acetate/n-hexane (from 1:4 to pute ethyl acetate)