It was shown that 3-amino-4-cyanofurazan easily condenses with malononitrile and ethyl cyanoacetate in the presence of bases, forming polyfunctional enaminonitriles – precursors in the synthesis of pyrazoles and annulated derivatives of furazano[3,4-b]pyridines and furazano[3,4-b]pyrimidines.

中文翻译：

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3-Amino-4-（1-amino-2-cyanovinyl）furazans：合成和环化

结果表明，在碱存在下，3-amino-4-cyanofurazan容易与丙二腈和氰基乙酸乙酯缩合，形成多官能的烯腈-吡唑和呋喃并[3,4- b ]吡啶和呋喃并[ 3，4- b ]嘧啶。