4-Substituted pyrazolo [3,4-d] pyrimidinyl piperazine derivatives and a method of synthesis for the derivatives are described. The compounds are useful as cardiotonic agents and antiarrhythmic agents.
介绍了 4-取代
吡唑并[3,4-d]
嘧啶基
哌嗪衍
生物及其合成方法。这些化合物可用作强心剂和抗心律失常剂。