G.d. Searle & Company

Benedetto Natalini

Roberto Pellicciari

Alexis A Cordi

Thomas H Lanthorn

Maura Marinozzi

Compounds, compositions and methods are described for treating a CNS disorder such as a cognitive disorder, epilepsy, depression, Parkinson's disease, Alzheimer's disease, a neurodegenerative disease or neurotoxic injury. Compound of interest are 2-amino-4,5-methyleneadipic acid compounds and derivatives defined by the formula I: ##STR1## wherein R.sup.1 is selected from hydrido, alkyl, cycloalkyl, aralkyl, aryloxyalkyl, arylthioalkyl, ##STR2## with each of R.sup.2, R.sup.3, R.sup.4 and R.sup.5 being independently selected from hydrido, alkyl, cycloalkyl, aryl and aralkyl; wherein each of X and Y is independently selected from hydroxyl, alkoxy, alkylthio, amino and ##STR3## with each of R.sup.6 and R.sup.7 being independently selected from hydrido, alkyl, cycloalkyl, aryl and aralkyl; wherein any of R.sup.1 through R.sup.7 groups having a substitutable position may be substituted with one or more substituents selected from hydroxyl, halo, alkyl, haloalkyl, cyano, alkoxy, alkylthio, sulfinyl, sulfonyl, sulfinylalkyl, sulfonylalkyl, amino, acyl, acyloxy, alkoxycarbonyl and aminocarbonyl; or a pharmaceutically-acceptable salt thereof.

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Perugia, Italy

Benedetto Natalini