作者:Gary L. Anderson、Stephen G. Richardson
DOI:10.1002/jhet.5570220653
日期:1985.11
The synthesis of 4-amino-2-methylthio-5-oxopyrido[2,3-d]pyrimidine 4 and its isomer, 4-amino-2-methyl-thio-7-oxopyrido[2,3-d]pyrimidine 6 is described. The regiochemistry of the reaction of 4,6-diamino-2-methyl-thiopyrimidine 9 and diethyl ethoxymethylene malonate 12 is discussed.
4-氨基-2-甲基硫基-5-氧吡啶并[2,3- d ]嘧啶4及其异构体4-氨基-2-甲基硫基-7-氧吡啶并[2,3- d ]嘧啶6的合成是描述。讨论了4,6-二氨基-2-甲基-硫代嘧啶9和乙氧基亚甲基丙二酸二乙酯12的反应的区域化学。