v-Triazolo[4,5-d]pyrimidines (8-azapurines). Part 23. Synthesis and properties of N-alkyl-1,6-dihydro-8-azapurin-2-thiones. Migration (N → N′) of acyl group in 5-aminomethyl-4-oxamoylamino-1,2,3-triazoles
作者:Adrien Albert
DOI:10.1039/p19810000887
日期:——
1,6-Dihydro-7-(and 8-)methyl-8-azapurine-2-thione (1a and b) were made by the action of carbon disulphide on 4-amino-5-aminomethyl-1-(and 2)-methyl-1(and 2)H-1,2,3-triazole (2c and d) respectively. These thiones were methylated to the corresponding 2-methylthio-derivatives (5a and b), which were oxidized by manganese dioxide to 7-(and 8-)methyl-2-methylthio-8-azapurine (6a and b), and the latter was
通过二硫化碳对4-氨基-5-氨基甲基-1-(和2)的作用制得1,6-二氢-7-(和8-)甲基-8-氮杂嘌呤-2-硫酮(1a和b) -甲基-1(和2)H -1,2,3-三唑(2c和d)。这些硫酮被甲基化为相应的2-甲硫基衍生物(5a和b),然后被二氧化锰氧化为7-(和8-)甲基-2-甲硫基-8-氮杂嘌呤(6a和b),后者将其进一步氧化为亚砜(6c)。