Substituted-3-(2,3-dihydro-1H-inden-5-yl)-4-Hydroxy-1H-Pyrrole-2,5-diones, their analogs and their salts
申请人:Merck & Co., Inc.
公开号:EP0160891A1
公开(公告)日:1985-11-13
The invention relates to novel compounds of the formula:
in which R and R' are different entities and wherein
A is a bond, -0- or -0-(CH2)q;
q is 1 to 5;
z is 0 or H and OH;
R is cycloalkyl, cycloalkyl-lower alkyl, aryl selected from phenyl, halophenyl, methoxyphenyl, hydroxyphenyl, heterocyclic including thienyl, aralkyl selected from benzyl and phenethyl, lower alkyl, lower alkenyl or lower alkynyl;
R' is lower alkyl, lower alkenyl; or lower alkynyl;
and X and Y are selected from halo and methyl provided that when A is a bond or when A is -O- and z is H and OH, R is not cycloalkyl or alkyl when R' is lower alkyl and both X and Y are chloro when the compounds are racemic.
The compounds are useful for the treatment and prevention of injury to the brain and of edema due to head trauma, stroke, arrested breathing, cardiac arrest, Reye's syndrom, cerebral thrombosis, cerebral embolism, cerebral hemorrhage, cerebral tumors, encephalomyelitis, spinal cord injury, hydrocephalus, post-operative brain injury trauma, edema due to cerebral infections and various brain concussions.
本发明涉及式如下的新型化合物:
其中 R 和 R' 为不同的实体,且
A 是键、-0- 或 -0-(CH2)q
q 是 1 至 5
z 是 0 或 H 和 OH;
R 是环烷基、环烷基-低级烷基、选自苯基、卤代苯基、甲氧基苯基、羟基苯基的芳基、包括噻吩基在内的杂环基、选自苄基和苯乙基的芳烷基、低级烷基、低级烯基或低级炔基;
R' 是低级烷基、低级烯基或低级炔基;
X和Y选自卤代和甲基,条件是当A为键或当A为-O-且z为H和OH时,R不是环烷基或当R'为低级烷基时,R不是烷基,且当化合物为外消旋体时,X和Y均为氯代。
这些化合物可用于治疗和预防头部创伤、中风、呼吸停止、心脏骤停、雷氏综合征、脑血栓、脑栓塞、脑出血、脑肿瘤、脑脊髓炎、脊髓损伤、脑积水、脑外伤术后创伤、脑部感染引起的水肿以及各种脑震荡引起的脑部损伤和水肿。