Synthesis of new spirobenzazolines including a furo[3,4-<i>b</i>]pyran ring system
作者:P. Coudert、J. M. Couquelet、P. Tronche
DOI:10.1002/jhet.5570230554
日期:1986.9
A series of 4,5-dihydrofuro[3,4-b]pyran-6-spiro-2′-benzazolines 3 were prepared by reaction of 4,4-dimethyl-2,6-dioxo-4,5-dihydrofuro[3,4-b]pyran 1 with o-phenylenediamine, o-aminophenol, o-aminothiophenol or their derivatives. Most of these compounds exhibited a significant analgesic activity.
一系列4,5-二氢呋喃并[3,4的b ]吡喃-6-螺-2'- benzazolines 3是由3 4,4-二甲基-2,6-二氧代-4,5-二氢呋喃的反应[制备,4- b ]吡喃1与ö苯二胺,ö氨基苯酚,ö -aminothiophenol或它们的衍生物。这些化合物大多数显示出明显的镇痛活性。