反应详情

Obtained from Intermediate 6 (6.88 g, 43.5 mmol) by the procedure described in Intermediate 3. Purification by column chromatography with silica gel and n-hexane/ethyl acetate (10:1) as eluent gave the title compound (10.9 g, 78%) as oil.

1. customPurification by column chromatography with silica gel and n-hexane/ethyl acetate (10:1) as eluent