反应详情

Obtained from Intermediate 91 (0.75 g, 4.36 mmol) by the procedure described in Intermediate 69. Purification by column chromatography with silica gel eluting with n-hexane/ethyl acetate (from pure n-hexane to 40:1) gave the title compound (0.53 g, 36%) as oil.

1. customPurification by column chromatography with silica gel eluting with n-hexane/ethyl acetate (from pure n-hexane to 40:1)