Synthesis and cyclization reactions of 2-amino-3-[(methoxy-carbonyl)methylsulfonyl]pyrroles and thiophene
作者:Chad E. Stephens、J. Walter Sowell
DOI:10.1002/jhet.5570350425
日期:1998.7
The title aminopyrroles and thiophene have been prepared by condensation of methyl (cyanomethyl-sulfonyl)acetate with various α-amino ketones or 2-mercaptoacetaldehyde, respectively. Subsequent cyclization of these compounds by reaction between the amine and activated methylene has led to various ester-substituted thiazine- and thiadiazine-based bicyclic derivatives. In addition, cyclization of the
标题氨基吡咯和噻吩分别通过使(氰甲基-磺酰基)乙酸甲酯与各种α-氨基酮或2-巯基乙醛缩合而制备。这些化合物随后通过胺和活化的亚甲基之间的反应而环化,产生了各种基于酯取代的噻嗪和噻二嗪的双环衍生物。另外,通过胺和酯的分子内偶联将标题化合物环化,产生了类似的双环噻嗪-3(2 H)-one。酯取代的双环尝试水解成相应的羧酸是不成功的。