Studies on antirheumatic agents. 3-Benzoylpropionic acid derivatives.
作者:KAZUYA KAMEO、KUNIO OGAWA、KIMIYO TAKESHITA、SHIRO NAKAIKE、KAZUYUKI TOMISAWA、KAORU SOTA
DOI:10.1248/cpb.36.2050
日期:——
As part of the search for new antirheumatic agents, three types of 3-benzoylpropionic acid derivatives having a mercapto moiety in their structures were prepared, and tested for suppressing activity on adjuvant arthritis in Sprague-Dawley rats. A structure-activity relationship study showed that substitution on the phenyl ring contributed to the activity and the most favorable substituent was different in each type of derivative.
Hydroxymethylation of 3-Aroylpropanoic Acids; An Improved Synthesis of 4-Aroyl-2(3<i>H</i>)-dihydrofuranones and an Easy Approach to 3-Aroyl-3-butenoic Acids
A Practical Procedure for the Synthesis of Esonarimod, (R,S)-2-Acetylthiomethyl-4-(4-methylphenyl)-4-oxobutanoic Acid, an Antirheumatic Agent. (Part 1).
An efficient and practical procedure for the synthesis of esonarimod, (R,S)-2-acetylthiomethyl-4-(4-methylphenyl)-4-oxobutanoic acid (1), a new antirheumatic drug, has been developed. The intermediate, 2-methylene-4-(4-methylphenyl)-4-oxobutanoic acid (2), was prepared by Friedel-Craftsacylation of toluene with itaconic anhydride (3) in the presence of aluminum trichloride and nitrobenzene in 63%