[EN] NUCLEOSIDE DERIVATIVES FOR TREATING HEPATITIS C VIRUS INFECTION [FR] DERIVES NUCLEOSIDIQUES DESTINES AU TRAITEMENT DE L'INFECTION PAR LE VIRUS DE L'HEPATITE C
Synthesis of 5-Oxo and 7-Oxopyrido[2,3-<i>d</i>]pyrimidines
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.