New Regioselective Synthesis of 7H-Imidazo[2,1-b][1,3]thiazine and 2H,6H-Pyrimido[2,1-b][1,3]thiazine Derivatives
作者:Cyrille Landreau、David Deniaud、Alain Reliquet、Jean Claude Meslin
DOI:10.1055/s-2002-20044
日期:——
prepared by the reaction of amidines 2 with α-bromoketones, acid chlorides or acrylic dienophiles. The four steps synthesis reaction from thiourea and full characterisation of 7H-imidazo[2,1-b][1,3]thiazines 4, 2H,6H-pyrimido[2,1-b][1,3]thiazin-6-ones 5, and 2H,6H-pyrimido[2,1-b][1,3]thiazines 6 are described.
通过脒 2 与 α-溴酮、酰氯或丙烯酸类双烯体反应制备一系列标题化合物。硫脲的四步合成反应和7H-咪唑并[2,1-b][1,3]噻嗪4, 2H,6H-嘧啶并[2,1-b][1,3]thiazin-6-的全表征描述了 5 和 2H,6H-嘧啶并[2,1-b][1,3]噻嗪 6。