反应详情

Obtained from Intermediate 38 (1.37 g, 4.96 mmol) by the procedure described in Intermediate 20. Purification by column chromatography with silica gel using n-hexane/ethyl acetate (15:1) as eluent gave the title compound (1.2 g, 70%) as oil.

1. customPurification by column chromatography with silica gel