2-Amino-4-aryl-6-(ω-carboxyalkyl)-5<i>H</i>-pyrrolo[3,4-<i>d</i>]pyrimidin-7-(6<i>H</i>)ones. Preparation<i>via</i>a one-pot synthesis of 1-(ω-carboxyalkyl)-4-carbethoxy-2,3-dioxopyrrolidines
作者:R. Madhav、Carroll A. Snyder、Philip L. Southwick
DOI:10.1002/jhet.5570170617
日期:1980.9
prepared by a one-potsynthesisfrom β-alanine or γ-aminobutyric acid, ethyl acrylate and diethyl oxalate. In a second one-pot process these products were hydrolyzed, decarboxylated and condensed with aromatic aldehydes under the influence of hydrochloric acid to yield 1-(ω-carboxyalkyl)-4-arylidene-2,3-dioxo-pyrolidines, which yielded 2-amino-4-aryl-6-(ω-carboxyalkyl)-5H-pyrrolo[3,4-d]pyrimidin-7-(6H)-ones
1-(ω-羧基烷基)-4-碳乙氧基-2,3-二氧杂吡咯烷类化合物是通过一锅法从β-丙氨酸或γ-氨基丁酸,丙烯酸乙酯和草酸二乙酯合成的。在第二个一锅法中,这些产物在盐酸的作用下水解,脱羧并与芳族醛缩合,生成1-(ω-羧基烷基)-4-芳基-2,3-二氧代吡咯烷,生成2-氨基-4-芳基-6-(ω-羧基烷基)-5- ħ吡咯并[3,4- d ]嘧啶-7-(6 ħ) -酮在用胍处理。结果表明,最初在胍反应中形成的某些2-氨基-4-芳基-5 H-吡咯并[3,4- d ]嘧啶-7-(6 H)酮的3,4-二氢衍生物容易发生转换为5H-吡咯并[3,4- d ]嘧啶-7-(6 H)酮。
MADHAV R.; SNYDER C. A.; SOUTHWICK P. L., J. HETEROCYCL. CHEM., 1980, 17, NO 6, 1231-1235