反应详情

Substantially the same procedure as in Example 1 was repeated using 3',4',5'-trimethoxyacetophenone (2.1 g) and 6-chloroindole-3-carboxaldehyde (1.8 g) except that the obtained product was recrystallized from ethyl acetate, to give Compound 42 (2.57 g).

1. customwas recrystallized from ethyl acetate