Synthesis of some 7-substituted-2,4,8(1<i>H</i>,3<i>H</i>,7<i>H</i>)pyrimido[5,4-<i>d</i>]pyrimidinetriones
作者:William Pendergast、William R. Hall
DOI:10.1002/jhet.5570230531
日期:1986.9
A synthesis of 2,4,8-pyrimido[5,4-d]pyrimidinetriones under mild conditions from ethyl 5-ethoxymethyleneamino-orotate allows the introduction of a variety of substituents regiospecifically into the 7-position. The 7-methyl and 7-benzyl derivatives were methylated with trimethyl phosphate to the 1,3,7-trialkyl derivatives.
由5-乙氧基亚甲基氨基乳清酸酯在温和条件下合成2,4,8-嘧啶并[5,4- d ]嘧啶三酮可以将多种取代基区域特异性地引入7位。用磷酸三甲酯将7-甲基和7-苄基衍生物甲基化为1,3,7-三烷基衍生物。