Synthesis of derivatives of thiazolo[4,5-d]pyrimidine. Part II
作者:J. A. Baker、P. V. Chatfield
DOI:10.1039/j39700002478
日期:——
attempt to prepare thiazolo[4,5-d]pyrimidine-5,7-diol by the action of potassium hypobromite on thiazole-4,5-dicarboxamide revealed the instability of the thiazole portion of this condensed ring system when 2-substituents are lacking. The product obtained was bis-(4-amino-2,6-dihydroxpyrimidin-5-yl) disulphide, contrary to an earlier report. A number of thiazolo [4,5-d]pyrimidines have been prepared by cyclisation
尝试通过次溴酸钾对噻唑-4,5-二甲酰胺的作用制备噻唑并[4,5- d ]嘧啶-5,7-二醇的方法表明,当2-取代基被取代时,该稠环系统的噻唑部分不稳定。不足。与先前的报道相反,获得的产物是双-(4-氨基-2,6-二氢嘧啶-5-基)二硫化物。通过将相应的4-氨基嘧啶-5-基硫氰酸酯环化,已经制备了许多噻唑洛[4,5- d ]嘧啶。用亚硝酸对氨基噻唑并[4,5- d ]嘧啶进行脱氨基反应,得到了许多衍生物,其中之一是尿酸的类似物。