Heterocyclic acids

Details Heterocyclic acids Heterocyclic acids

C - Chemistry, Metallurgy

07

D

C07D 417/04 (2006.01) A61K 31/41 (2006.01) C07D 263/26 (2006.01) C07D 403/04 (2006.01) C07D 405/04 (2006.01)

Patent

CA 2052294

ABSTRACT HETEROCYCLIC ACIDS The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I Image wherein: n is the integer 1 or 2; Y is methyleneoxy, vinylene or ethylene; A1 is (1-6C)alkylene; R1 is a group of the formula R2.A2-, in which: R2 is phenyl unsubstituted or bearing up to three substituents which are independently selected from (1-6C)alkyl, (1-6C)alkoxy, (2-6C)alkanoyl, (1-6C)alkylthio, (1-6C)alkylsulphonyl, halogeno, trifluoromethyl, nitro and cyano; A2 is a direct bond to R2 or a group of the formula -W-C(R4)(R5)- wherein W is oxygen, methylene or a direct bond to R2, and R4 and R5 are independently (1-4C)alkyl; Q is a heterocyclyl group selected from thiazol-5-yl and imidazol-5-yl, the latter being unsubstituted or bearing a (1-12C)alkyl group at the 1-position of the imidazole ring; and R3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido; or a pharmaceutically acceptable salt thereof. The compounds are thromboxane A2 antagonists and inhibitors of thromboxane A2 synthase, and are useful on the treatment of a variety of diseases in which thromboxane A2 is involved, such as is ischaemic heart disease, cerebrovascular disease and peripheral vascular disease. The invention also includes processes for the manufacture and use of the compounds, and pharmaceutical compositions containing them.

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