Synthesis and CLOGP correlation of imidooxy anticonvulsants.

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 Chem

authors

Farrar VA,Ciechanowicz-Rutkowska M,Grochowski J,Serda P,Pilati T,Filippini G,Hinko CN,el-Assadi A,Moore JA,Edafiogho IO

doi

10.1021/jm00075a005

subject

Has Abstract,Author List Incomplete

pub_date

1993-11-12 00:00:00

pages

3517-25

issue

23

eissn

0022-2623

issn

1520-4804

journal_volume

36

pub_type

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