Synthesis, anticonvulsant and antihypertensive activity of diastereomeric 9,10-dimethoxy-1,3,4,6,7,11b-hexahydrospiro-[benzo[a]quinolizin-2,4′-imidazolidine]-2′,5′-diones
作者:JC Menéndez、MP Díaz、C Bellver、MM Söllhuber
DOI:10.1016/0223-5234(92)90062-6
日期:1992.1
The synthesis of the 2S, 11bS (2) and 2R, 11bS (3) diastereoisomers of the 9,10-dimethoxy-1,3,4,5,6,11b-hexahydrospiro[benzo[a]quinolizin-2,4'-imidazolidine]-2',5'-dione system was achieved using the Bucherer-Bergs and Read hydantoin syntheses respectively. Alternatively, the 2R, 11bS isomer was prepared by treating the appropriate aminonitrile with chlorosulphonyl isocyanate, followed by acid hydrolysis. Compound 3 showed good anticonvulsant activity against pentamethylenetetrazole-induced seizures. Its behaviour is discussed in comparison with that of phenytoin. Both compounds were inactive as antihypertensives.