3-Propionylsalicylic acid derivatives and process for the preparation of the same
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United States of America Patent
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Aug 6, 1985
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N/A
app pub date -
Sep 30, 1983
filing date -
Sep 30, 1982
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Expired
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Abstract
This invention relates to derivatives of 3-propionylsalicylic acid represented by the formula (1) ##STR1## wherein R represents a hydrogen atom, a lower alkyl group or a group ##STR2## (wherein R.sup.1 and R.sup.2 represent a lower alkyl group or R.sup.1 and R.sup.2, when taken together with the nitrogen atom to which they are attached, may form a heterocyclic ring with or without an intervening hetero atom, and n is an integer of 1 to 4), and X represents a hydrogen atom or a halogen atom, R being the group ##STR3## when X is a hydrogen atom. This invention also relates to processes for preparing the same.
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