摘要 已经开发了合成8-肼基6-硫代吡喃并[3,4- c ]吡啶的衍生物的方法。8-肼基-6-(甲基硫烷基)吡喃并[3,4 - c ]吡啶和5-(或3)-(烷基硫烷基)吡喃并[3,4- c ] [1,2,4]三唑并[4,已经合成了3- α ]吡啶。研究了5-硫代吡喃并[3,4- c ] [1,2,4]三唑并[4,3- a ]吡啶的硫酮-巯基互变异构现象。在碱性介质中,平衡向硫醇形式转移,从而可以合成S-烷基取代的三唑并[4,3- a ]吡啶。
Synthesis of 2,3-disubstituted derivatives of pyrano-, thiopyrano-, and benzoannelated pyrido[2,3-b]thieno[3,2-d]pyrimidines
作者:E. G. Paronikian、Sh. F. Akopian、A. S. Noravian
DOI:10.1007/s10593-008-0145-y
日期:2008.8
A new methods have been developed for the synthesis of condensed pyrido[2,3-b]thieno[3,2-d]pyrimidines based on cyclic derivatives of 4-cyanopyridine-3-thiones. The presence of two different reactive functional groups NH2 and CONH gives the possibility of carrying out different conversions of thieno[2,3-b]pyridines.