Abstract:
:Continuing structure-activity studies on the anticonvulsant activity of analogs of N-(benzyloxy)-2-azaspiro[4.4]nonane-1,3-dione (2a), which displayed anti-electroshock seizure (MES) activity and a protective index (TD50/ED50) of > 4.5 are reported. An in-depth analysis of this moiety was studied employing the Topliss structure activity and the Craig plot analytical approaches as well as a semiempirical method. CLOG P analysis was also applied to this series after experimentally determining the NOR fragment. All compounds were minimized and these physicochemical parameters correlated to anticonvulsant activity. Several interesting substituted benzyloxy compounds emerged from this study: the 2',4'-dichloro (2b), 4'-(trifluoromethyl) (2c), 2'-bromo (2d), 3'-chloro (2o), 2'-chloro (2r), 2'-fluoro (2p), and 3'-fluoro (2w) analogs, all of which had comparable, or better activity than the parent unsubstituted analog (2a). X-ray crystal analysis of the active 2a versus inactive N-benzyl-2-azaspiro[4.4]nonane-1,3-dione (10) is discussed.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Farrar VA,Ciechanowicz-Rutkowska M,Grochowski J,Serda P,Pilati T,Filippini G,Hinko CN,el-Assadi A,Moore JA,Edafiogho IOdoi
10.1021/jm00075a005subject
Has Abstract,Author List Incompletepub_date
1993-11-12 00:00:00pages
3517-25issue
23eissn
0022-2623issn
1520-4804journal_volume
36pub_type
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