Structure-activity studies on benzhydrol-containing nipecotic acid and guvacine derivatives as potent, orally-active inhibitors of GABA uptake
摘要:
The introduction of lipophilic groups onto the ring nitrogen of nipecotic acid and guvacine, two known GABA uptake inhibitors, afforded potent, orally-active anticonvulsant drugs. A series of compounds is reported which explores the structure-activity relationships (SAR) in this series. Among the areas explored: side-chain SAR (aromatic-, heterocyclic-, and tricyclic-containing side chains) and modifications to the tetrahydropyridine ring. The benzhydrol ether-containing side chains afforded the most potent compounds with several exhibiting in vitro IC50 values for GABA uptake of <1 muM (including 5, Table 1; 37, 43, Table IV; and 44, Table V). Compound 44 was selected for extensive evaluation and subsequently progressed to Phase 1 clinical trials with severe adverse effects seen after single dose administration to humans.
Reaction of dilithium benzophenone, dilithium 9-fluorenone and the lithium salt of benzophenone ketyl with chlorides and anhydrides of carboxylic acids
作者:J. Honzl、M. Metalová
DOI:10.1016/s0022-328x(00)83502-0
日期:1980.2
The reaction of dilithium benzophenone and the lithium salt of benzophenone ketyl with anhydrides and chlorides and benzoic and acetic acid and the reaction of dilithium 9-flourenone with aceticanhydride were investigated. In addition to the expected products Ar2C(COR)OCOR, products of the type Ar2CCR(OCOR) were also obtained, and in the case of reactions with acetyl chloride and acetic anhydride