反应详情

By reacting the product of Example 1 with piperazinomethyl chloride instead of 1-bromo-3-methylbutane as in Example 2, 3-ethyl-3,11-dihydro-11-(1-piperazino)methyl-6H-pyrazolo[1,5-a]pyrazolo[4', 3':5,6]pyrido[4,3-d]pyrimidin-6-one is obtained.