N 1 -[((Z)-2-氨基-1,2-二氰基乙烯基]甲form 1a-d与异氰酸甲苯磺酯容易反应,形成新的8-氨基-3-取代的-5-氧代-7-甲苯磺酰基氨基咪唑[4,5- d ] [1,3]二氮杂卓6a-d,而不是预期的6-氰基-2-氧代嘌呤衍生物5a-d。通过与氯甲酸乙酯反应并由碱催化环化所得的5-乙氧基羰基氨基-4-(氰基甲酰亚胺基)咪唑,由化合物1a合成了化合物5a。在相似条件下用异氰酸甲苯酯处理5-氨基-4-氰基咪唑7a和b,得到4-氰基-5-(3'-甲苯磺酰脲基)咪唑8a。b和b,在用乙醇氨处理时环化为相应的异鸟嘌呤10a和b。
Booth, Brian L.; Dias, Alice M.; Proenca, M. Fernanda, Journal of the Chemical Society. Perkin transactions I, 1992, # 16, p. 2119 - 2126
作者:Booth, Brian L.、Dias, Alice M.、Proenca, M. Fernanda
DOI:——
日期:——
Synthesis of new imidazo[4,5-<i>d</i>][1,3]diazepine derivatives from 5-amino-4-(cyanoformimidoyl)imidazoles
作者:Alice M. Dias、M. Fernanda、J. R. P. Proença、Brian L. Booth
DOI:10.1002/jhet.5570330352
日期:1996.5
isocyanate to form novel 8-amino-3-substituted-5-oxo-7-tosylaminoimidazo[4,5-d][1,3]diazepines 6a-d rather than the 6-cyano-2-oxopurine derivatives 5a-d expected. Compound 5a has been synthesized from 1a by reaction with ethyl chloroformate and base-catalyzed cyclization of the resultant 5-ethoxycarbonylamino-4-(cyanoformimidoyl)imidazole. Treatment of the 5-amino-4-cyanoimidazoles 7a and b with tosyl isocyanate
N 1 -[((Z)-2-氨基-1,2-二氰基乙烯基]甲form 1a-d与异氰酸甲苯磺酯容易反应,形成新的8-氨基-3-取代的-5-氧代-7-甲苯磺酰基氨基咪唑[4,5- d ] [1,3]二氮杂卓6a-d,而不是预期的6-氰基-2-氧代嘌呤衍生物5a-d。通过与氯甲酸乙酯反应并由碱催化环化所得的5-乙氧基羰基氨基-4-(氰基甲酰亚胺基)咪唑,由化合物1a合成了化合物5a。在相似条件下用异氰酸甲苯酯处理5-氨基-4-氰基咪唑7a和b,得到4-氰基-5-(3'-甲苯磺酰脲基)咪唑8a。b和b,在用乙醇氨处理时环化为相应的异鸟嘌呤10a和b。