Abstract
A series of isosteres of 3-benzoyltrifluoromethanesulfonanilide involving alternatives to the carbonyl linking group was synthesized and screened for antiinflammatory activity in the carrageenan rat paw edema test. The systems examined were of the type m-CF3SO2NH-C6H4-X-C6H5, where X was -CROH-, -CHR-, -CH(OH)CH2-, -COCH2-, -CH2CO-, greater than C equal to CR2, -CR equal to CH, -C identical to C-, -CH2CH2-, CONH-, -NR-, -O-, -S(O)n- (n equal to 0,1,2), and carbon-carbon single bond. Many ortho and para derivatives were also tested. Several of these new trifluoromethanesulfonanilides proved equipotent with phenylbutazone. The effects on the anticarrageenan activity of both the nature and ring position of X are discussed.
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