Abstract
Some o-benzamidophenoxyacetic, phenylalkanoic and phenoxyalkanoic acids have been synthesized. Anti-inflammatory activity was measured by the phenylbenzoquinone writhing test in mice and the rat foot oedema test. Meta- and para-substitutions in the benzamido-ring, promoting lipid solubility, enhanced the potency, whereas substitution with polar groups reduced it. Further phenylring substitution in the 2-(3,4-dichlorobenzamido)phenoxyacetic acids only slightly affected the potency. Side-chain modifications did not increase the activity on the three substituted phenoxyacetic acids chosen. Two phenylpropionic acids showed a good order of activity but the respective cinnamic acids were virtually inactive. From the investigations 2-(3,4-dichlorobenzamido)phenoxyacetic acid (SNR. 1804) was selected for further studies is now undergoing clinical evaluation.
摘要:已合成一些o-苯甲酰基苯氧乙酸、苯基烷酸和苯氧烷酸。通过小鼠苯基苯醌扭曲实验和大鼠足部水肿实验测量了抗炎活性。苯甲酰环中的间位和对位取代,促进了脂溶性,增强了效力,而用极性基团取代则降低了效力。在2-(3,4-二氯苯甲酰胺)苯氧乙酸中进一步取代苯环仅稍微影响了效力。侧链修饰并未增加所选的三种取代苯氧乙酸的活性。两种苯丙酸显示出良好的活性顺序,但相应的肉桂酸几乎无活性。从研究中选择了2-(3,4-二氯苯甲酰胺)苯氧乙酸(SNR. 1804)进行进一步研究,目前正在进行临床评估。