反应详情

1-Butyl-3-(3,5-di-tertiary butyl-4-hydroxyphenyl)-1H-pyrazolo[3,4-b]pyridine, melting at 94°-96° C. is prepared by reacting the compound of Example 1 with butyl bromide similarly in Example 9, and recrystallizing from petroleum ether.

1. customrecrystallizing from petroleum ether