- Substituted hydantoins
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The present invention relates to compounds of the formula which are useful in treating diseases characterized by the hyperactivity of MEK. Accordingly the compounds are useful in the treatment of diseases, such as, cancer, cognative and CNS disorders and inflammatory/autoimmune diseases.
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Page/Page column 55
(2008/06/13)
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- Aniline derivatives possessing an inhibitory effect of nitric oxide synthase
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Compounds represented by the general formula (1): ? (where R1is SR6or NR7R8, where R6is typically an alkyl group having 1-6 carbon atoms, R7is a hydrogen atom, an alkyl group having 1-6 carbon atoms or a nitro group, and R8is a hydrogen atom or an alkyl group having 1-6 carbon atoms; R2and R3are each typically a hydrogen atom or an alkyl group having 1-6 carbon atoms; R4is a hydrogen atom, an alkyl group having 1-6 carbon atoms or an amidino group of which the amine portion may be substituted by an alkyl or nitro group; R5is a hydrogen atom or an alkyl group having 1-6 carbon atoms; Y1, Y2, Y3and Y4which may be the same or different are each typically a hydrogen atom, a halogen atom or an alkoxy group having 1-6 carbon atoms; n and m are each an integer of 0 or 1), or possible stereoisomers or optically active forms of the compounds or pharmaceutically acceptable salts thereof. The compounds possess a potent nitric oxide synthase inhibiting activity and are useful as therapeutics of cerebrovascular diseases.
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