A new method for the synthesis of novel 3-substituted 4-amino-8-ethoxycarbonylpyrazolo[5,1-<i>c</i>][1,2,4]triazines and pyrazolo[1′,5′:3,4][1,2,4]triazino[5,6-<i>b</i>][1,5]benzodiazepines
作者:Yoshihisa Kurasawa、Yoshihisa Okamoto、Atsushi Takada
DOI:10.1002/jhet.5570240656
日期:1987.11
Novel 3-substituted 4-amino-8-ethoxycarbonylpyrazolo[5,1-c][1,2,4]triazines 7,8 were synthesized by the reactions of malononitrile and ethyl cyanoacetate with the pyrazole-5-diazonium salt 3. Moreover, compounds 7,8 were converted into the pyrazolo[1′,5′:3,4][1,2,4]triazino[5,6-b][1,5]benzodiazepines 9, 10.
通过丙二腈和氰基乙酸乙酯与吡唑-5-重氮盐3的反应,合成了新型的3-取代的4-氨基-8-乙氧基羰基吡唑并[5,1- c ] [1,2,4]三嗪7,8。此外,化合物7,8被转化为吡唑并[1',5':3,4] [1,2,4]三嗪并[5,6- b ] [1,5]苯并二氮杂9、10。