A novel heterocyclic compound. Synthesis and reactivities of an oxazolo(3,2-a)thieno(3,2-d)-pyrimidine derivative.
作者:Hiroshi FUKUMI、Mitsuo SUGIYAMA、Toshiaki SAKAMOTO
DOI:10.1248/cpb.37.1197
日期:——
arboxylate in two steps was developed. The addition reactions of various nucleophiles to 2 were investigated and oxazole-ring-opened compounds were produced (5, 6, 12, 13 and 14). Desulfurization reaction of 2 with Raney Ni gave an oxazolo[3,2-a]pyrimidine derivative (15). It was found that 2 showed potent anti-gastric secretion activity.
分两步开发了由3-氨基噻吩-2-羧酸甲酯制备2,3-二氢-5H-恶唑并[3,2-a]噻吩并[3,2-d]嘧啶-5-酮(2)的实用方法。 。研究了各种亲核试剂与2的加成反应,并生成了恶唑开环的化合物(5、6、12、13和14)。2与阮内镍的脱硫反应得到恶唑啉[3,2-a]嘧啶衍生物(15)。发现2显示出有效的抗胃分泌活性。