Oxidation of uric acid. 4. Synthesis, structure, and diabetogenic action of 5-imino-2,4,6(1H,3H,5H)-pyrimidinetrione salts and their alloxan-like covalent adducts
作者:Mirko Poje、Boris Rocic、Milan Sikirica、Ivan Vickovic、Milenko Bruvo
DOI:10.1021/jm00360a014
日期:1983.6
Three synthetic routes to salts of 5-amino-5-hydroxy-2,4,6(1H,3H,5H)-pyrimidinetrione (10) are described. The key reactions involved acid-catalyzed cleavage of 5-amino-5-ureido-2,4,6(1H,3H,5H)-pyrimidinetrione (7), conversion of uramil (8) to dehydrouramil (9) and subsequent hydration, and the condensation of alloxan (5) with ammonium salts. The carbinol ammonium salt structure 10a was unambiguously
描述了三种合成5-氨基-5-羟基-2,4,6(1H,3H,5H)-嘧啶三酮(10)的盐的途径。关键反应包括酸催化的5-氨基5-脲基2,4,6(1H,3H,5H)-嘧啶三酮(7)的裂解,乌拉米尔(8)转化为脱氢尿素(9)以及随后的水合作用,以及四氧嘧啶(5)与铵盐的缩合。通过X射线晶体学明确地建立了甲醇铵盐结构10a。评价了新的四氧嘧啶样化合物7、9和10在大鼠中的致糖尿病活性。化合物7是无活性的,而化合物9和10具有与链脲佐菌素相当的最高活性(12)。