反应详情

Heat together a mixture of one equivalent of 8-bromo-1,3-di-n-butyl-xanthine with three to four equivalents of benzylamine at 160°-180° C. until thin layer chromatography analysis shows that no starting xanthine remains. Cool. Triturate with ethanol and water to yield 8-benzylamino-1,3-di-n-butyl-xanthine.

1. temperatureHeat together
2. temperatureCool
3. customTriturate with ethanol and water