A new route to<i>N</i><sup>2</sup>- and<i>N</i><sup>3</sup>-substituted-2,3-diaminopyridines. Synthesis of 1- and 3-alkoxycarbonyl-<i>v</i>-triazolo[4,5-<i>b</i>]pyridines
作者:Giampiero Pagani Zecchini、Ines Torrini、Mario Paglialunga Paradisi
DOI:10.1002/jhet.5570220216
日期:1985.3
Selective protection of the 3-amino group of 2,3-diaminopyridine with benzyl chloroformate allows a new synthesis of 3-methylamino- and 3-amino-2-alkylaminopyridines. The preparation of 1- and 3-alkoxycarbonyl-v-triazolo[4,5-b]pyridines is also reported.
用氯甲酸苄酯对2,3-二氨基吡啶的3-氨基进行选择性保护可以实现3-甲基氨基-和3-氨基-2-烷基氨基吡啶的新合成。的1-和3-烷氧基羰基的制备v -三唑并[4,5- b还报道]吡啶。