反应详情

The procedure is as described in Example 4, starting from 1.61 g of (3aS,4S,6S,7aR)-6-cyanomethyl-4-(2-methoxyphenyl)perhydroisoindol-4-ol hydrochloride, 50 cm3 of dichloromethane, 0.70 cm3 of triethylamine, 1.21 g of (2-benzyloxyphenyl) acetic acid, 0.02 g of hydroxybenzotriazole hydrate and 1.05 g of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide. Purification by chromatography followed by recrystallization from ethyl acetate give 1.4 g of (3aS,4S,6S,7aR)-6-cyanomethyl-2-[(2-benzyloxyphenyl)acetyl]-4-(2-methoxyphenyl)perhydroisoindol-4-ol are obtained in the form of white crystals.

1. customPurification by chromatography
2. customfollowed by recrystallization from ethyl acetate