作者:A. Walser、T. Flynn、C. Mason
DOI:10.1002/jhet.5570280448
日期:1991.6
The syntheses of two novel pentacyclic ring systems, the thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepino-[4,5-a]benzimidazole and the indazolo[2,3-d][1,2,4]triazolo[4,3-a][1,4]benzodiazepine are described. Attachment of a propargyl linked quinolinone resulted in compounds 6 and 16 which showed PAF-antagonist activity by the intravenous route of administration in guinea pigs. The more potent compound
噻吩[3,2- f ] [1,2,4]三唑并[4,3- a ] [1,4]二氮杂ino- [4,5- a ]苯并咪唑和噻吩并[ n ]描述了吲唑并[2,3- d ] [1,2,4]三唑并[4,3- a ] [1,4]苯并二氮杂pine 。炔丙基连接的喹啉酮的附接产生化合物6和16,其通过在豚鼠中的静脉内施用途径表现出PAF-拮抗剂活性。更有效的化合物16在支气管收缩试验中还表现出良好的口服活性,ID 50为0.2 mg / kg。