反应详情

Obtained from Intermediate 14 (0.41 g, 1.56 mmol) by the procedure described for the Intermediate 13. Purification by column chromatography with silica gel and methylene chloride/acetone (20:1) as eluent gave the title compound (0.38 g, 88%) as oil.

1. customPurification by column chromatography with silica gel and methylene chloride/acetone (20:1) as eluent