3-Propionylsalicyclic acid derivatives and process for the preparation of the same.

摘要

This invention relates to derivatives of 3-propionyl. salicylic acid represented by the formula (1)
<Chemistry id="chema01" num="0001"><Image id="ia01" he="23" wi="75" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R represents a hydrogen atom, a lower alkyl group or a group
<Chemistry id="chema02" num="0002"><Image id="ia02" he="14" wi="37" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>(wherein R<Sup>1</Sup> and R<Sup>2</Sup> represent a lower alkyl group or R<Sup>1</Sup> and R<Sup>2</Sup>, 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
<Chemistry id="chema03" num="0003"><Image id="ia03" he="12" wi="36" file="IMGA0003.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>when X is a hydrogen atom.

This invention also relates to processes for preparing the same.