Phenylacetamide derivatives and pharmaceutical compositions thereof
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United States of America Patent
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Sep 7, 1993
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app pub date -
Apr 13, 1992
filing date -
Jun 20, 1991
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Abstract
The present invention provides novel phenylacetamide derivatives having the following formula ##STR1## wherein: X is a hydrogen, halogen, hydroxy, nitro, amino, R.sup.1, NR.sup.1 R.sup.2, NHR.sup.1 or OR.sup.1 wherein R.sup.1 and R.sup.2 are an optionally substituted C.sub.1-8 alkyl, cycloalkyl or benzyl group, respectively; Y, which may be the same or different when p is greater than 1, is a hydrogen, halogen, methylenedioxy, hydroxy, trifluoromethyl, R.sup.3 or OR.sup.3 wherein R.sup.3 is an optionally substituted C.sub.1-8 alkyl or benzyl group; n is an integer from 1 to 6; and p is an integer from 1 to 5; and pharmaceutically acceptable salts thereof which have powerful analgesic and anti-inflammatory activities. The invention also provides processes for preparing these compounds and pharmaceutical compositions containing them as an active ingredient.
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