反应详情

Prepared according to the procedure described in Example 99 using 3,5-dimethoxy-4-hydroxybenzaldehyde (5.8 g, 31 mmoles) and 1-methyl hydantoin (3.5 g, 30 mmoles). Recrystallization from ethanol gave the pure product (2.8 g),mp 194°-196° C.

1. customPrepared
2. customRecrystallization from ethanol