作者:Marjan Kočevar、Branko Stanovnik、Miha Tišler
DOI:10.1016/s0040-4020(01)91861-7
日期:1983.1
Syntheses of 4-aminopteridine 3-oxides are described. The pyrimidine part undergoes transformations with various reagents to give 4-hydroxyaminopteridines, substituted pyrazines, or substituted 1,2,4-oxadiazolyl- pyrazines. s-Triazolo(l,5-a)pyrazines can be prepared from the 1,2,4-oxadiazolylpyrazines. The ring opening of the pyrimidine part of pteridines proceeds either by a C2-N3 or N3-C4 bond cleavage
描述了4-氨基蝶啶3-氧化物的合成。嘧啶部分用各种试剂进行转化,得到4-羟基氨基蝶啶,取代的吡嗪或取代的1,2,4-恶二唑基-吡嗪。s-三唑并(1,5-a)吡嗪可以由1,2,4-恶二唑基吡嗪制备。蝶啶的嘧啶部分的开环通过C 2 -N 3或N 3 -C 4键断裂而进行。