发明授权
US4409240A Derivatives of dihydroxybenzoic acid and pharmaceutical composition thereof 失效
二羟基苯甲酸的衍生物及其药物组合物

Derivatives of dihydroxybenzoic acid and pharmaceutical composition
thereof
摘要:
A novel derivative of dihydroxybenzoic acid represented by the formula (I) ##STR1## wherein R represents ##STR2## or a salt or an ester thereof which has specific pharmacological activities, a method for preparing thereof and a pharmaceutical composition comprising thereof as an active ingredient are provided.
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