Synthesis and hypoglycemic activity of N-(5-carboalkoxyfuran-2-sulfonyl)-N′-butyl urea
作者:L. S. Abovyan、V. A. Shkulev、N. O. Stepanyan、A. S. Agaronyan、O. L. Mndzhoyan
DOI:10.1007/bf01150723
日期:1983.6
(2-carboxamidofuran-5sulfonamide, XVlII). The melting point of the Diamid prepared here (221-223~ is different from that described in the literature [4] for Diamid (211-212~ The starting material for the synthesis of the latter was the acid I, prepared by treatment of furan-2-carboxylic acid with oleum [4]. We established that in this case the disodium salt of I was present as a
通过呋喃-2-羧酸与氯磺酸磺化获得的5-硫呋喃-2-羧酸(I)转化为其单钾盐,然后用五氯化磷处理以形成二酰氯(II)。从后者得到2-羧基-呋喃磺酰氯(III)和“二酰胺”(2-羧基呋喃-5磺酰胺,XVIIII)的烷基酯。这里制备的Diamid(221-223~与文献[4]中描述的Diamid(211-212~)的熔点不同,后者合成的起始原料为酸I,经呋喃处理制得-2-羧酸与发烟硫酸 [4]. 我们确定在这种情况下 I 的二钠盐作为