作者:Terence T. Tita、Milton J. Kornet
DOI:10.1002/jhet.5570250143
日期:1988.1
A number of novel 3-aminoquinazolines were obtained via two synthetic pathways. In the first method o-aminobenzoylhydrazines were prepared either by reacting an isatoic anhydride and a hydrazine or by reacting o-nitrobenzoic acid with a hydrazine, followed by catalytic reduction. Subsequent cyclization with an appropriate orthoester provided 3-aminoquinazolines and 2-methyl-3-aminoquinazolines. The
通过两种合成途径获得了许多新颖的3-氨基喹唑啉。在第一种方法中,通过使等角酸酐与肼反应或通过使邻硝基苯甲酸与肼反应,然后催化还原来制备邻氨基苯甲酰基肼。随后用适当的原酸酯环化,得到3-氨基喹唑啉和2-甲基-3-氨基喹唑啉。第二个途径涉及o的凝结-氨基苯乙酮与肼形成,将其还原为氨基肼并如上所述环化,得到4-甲基-3-氨基喹唑啉和2,4-二甲基-3-氨基喹唑啉。在MES和sc Met癫痫发作模型中的小鼠中评估标题化合物的抗惊厥活性,并在转子试验中评估其神经毒性。它们通常是有毒的。然而,4-甲基-3-(N-哌啶子基)-3,4-二氢喹唑啉盐酸盐显示出与甲喹酮相当的活性。