Isoxazole derivatives

Details Isoxazole derivatives Isoxazole derivatives

C - Chemistry, Metallurgy

07

D

260/311.1

C07D 263/56 (2006.01) C07D 261/20 (2006.01)

Patent

CA 1042006

Isoxazole Derivatives ABSTRACT OF THE DISCLOSURE This invention provides 1,2-benzisoxazole derivatives of the formula: Image wherein R1 represents one or more substituents which are at any one or more of the available positions in the benzene ring and which are selected from one or more of the following atoms or groups; hydrogen, halogen, preferably chlorine or bromine, C1-4 alkyl, preferably methyl, C1-C4 alkoxy, preferably methoxy, nitro, and trifluoromethyl, and R2 is a substituent at the 5-, 6-, or 7- position of the 1,2-benzisoxazole nucleus and is one of the following: hydrogen, C1-4 alkyl, preferably methyl, carboxy C1-4 alkyl, preferably carboxymethyl, cyano C1-4 alkyl, preferably cyanomethyl or 1-cyanoethyl, -CH(R3)? COOH, -CH2?COOR3, and -CH(R3)?COOR3, where R3 is C1-4 alkyl; except that when R1 represents a hydrogen atom R2 is not hydrogen. Some of the compounds embraced by the above generic formula possess valuable pharmacological activity, while others are useful as intermediates in the synthesis in preparing pharmacologically active compounds.

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