11,12-Secoprostaglandins. 5. 8-Acetyl- or8-(1-hydroxyethyl)-12-hydroxy-13-aryloxytridecanoic acids and sulfonamide isosteres as inhibitors of platelet aggregation

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Abstract
The synthesis of a series of 8-acetyl- (or 1-hydroxyethyl-) 12-hydroxy-13-aryloxytridecanoic acids and their sulfonamide isosteres is described. These compounds are formally derived from members of earlier reported series of modified secoprostaglandins by replacing the .omega.-butyl chain termini by substituted aryloxy groups. A number of these compounds are potent inhibitors of collagen-induced blood platelet aggregation in guinea pigs on oral administration.