The synthesis of some 5-substituted 4-isoxazoleacetic acids starting from 5-substituted 4-isoxazolemethanols via their conversion to 4-(bromomethyl)isoxazoles, 4-isoxazoleacetonitriles and acid hydrolysis of the latter is described. 5-Ethyl- and 5-propyl-4-isoxazoleacetic acids showed in the writhing test an analgesic activity comparable to that of aspirin.
5-Substituted 4-Isoxazoleacetic acids with analgesic activity.
FOSSA, PAOLA;MENOZZI, GIULIA;SCHENONE, PIETRO;MATTIOLI, FRANCESCA
1994-01-01
Abstract
The synthesis of some 5-substituted 4-isoxazoleacetic acids starting from 5-substituted 4-isoxazolemethanols via their conversion to 4-(bromomethyl)isoxazoles, 4-isoxazoleacetonitriles and acid hydrolysis of the latter is described. 5-Ethyl- and 5-propyl-4-isoxazoleacetic acids showed in the writhing test an analgesic activity comparable to that of aspirin.
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