Synthesis of Angular [1,2,5]Oxadiazolo[3,4-b]pyrazino-[1′,2′ : 1,2]pyrrolo[2,3-e][1,4]diazepine by Stepwise Reaction of Pyrrolo[1,2-a]pyrazinetrione with 3,4-Diaminofurazan
作者:A. V. Chervyakov、A. N. Maslivets
DOI:10.1134/s1070428018030235
日期:2018.3
Diaminofurazan reacted with 8-benzoyl-2-phenyl-3,4-dihydropyrrolo[1,2-a]pyrazine-1,6,7(2H)- trione to give addition product of the amino group to the double bond of the pyrrole ring, which underwent cyclization to 2,8-diphenyl-3,4-dihydro[1,2,5]oxadiazolo[3,4-b]pyrazino[1′,2′: 1,2]pyrrolo[2,3-e][1,4]diazepine-1,6,7(2H,9H,13H)-trione by the action of N,N′-dicyclohexylcarbodiimide.
二氨基呋喃与8-苯甲酰基-2-苯基-3,4-二氢吡咯并[1,2- a ]吡嗪-1,6,7(2 H)-三酮反应生成氨基的加成产物吡咯环,将其环化为2,8-二苯基-3,4-二氢[1,2,5]恶二唑并[ 3,4- b ]吡唑并[1',2':1,2]吡咯并[2,3 - ë ] [1,4]二氮杂-1,6,7-(2 ħ,9 ħ,13 ħ)通过的作用-三酮ñ,N' -dicyclohexylcarbodiimide。