Syntheses of the Novel Furo [3, 4-b] [1, 5] benzodiazepinone and Pyrrolo [3, 4-b] [1, 5] benzodiazepinone Systems
作者:KEIZO MATSUO、KUNIYOSHI TANAKA
DOI:10.1248/cpb.32.3724
日期:——
10-Substituted 3, 3-dimethyl-3, 4, 9, 10-tetrahydro-1H-furo [3, 4-b] [1, 5] benzodiazepin-1-ones and 10-substituted 3, 3-dimethyl-3, 4, 9, 10-tetrahydro-1H-furo [3, 4-b] [1, 5] benzodiazepin-1-ones were synthesized by Mannich-type cyclization of the appropriate enaminolactone or enaminolactam obtained by the reaction of 5, 5-dimethyltetronic acid or 5, 5-dimethyltetramic acid with o-phenylenediamine.
合适的烯胺内酯或烯胺内酰胺通过5,5-二甲基四氢呋喃酸或5,5-二甲基四氢呋喃酸与邻苯二胺反应得到,再通过曼尼希类型的环化反应合成了10-取代的3,3-二甲基-3,4,9,10-四氢-1H-呋喃[3,4-b][1,5]苯二氮⼞基-1-酮和10-取代的3,3-二甲基-3,4,9,10-四氢-1H-呋喃[3,4-b][1,5]苯二氮⼞基-1-酮。