Synthesis and antiinflammatory activity of alkenylphenylpropionic acids.
作者:TAKEHIRO AMANO、KENSEI YOSHIKAWA、TOSHIHISA OGAWA、TATSUHIKO SANO、YUTAKA OHUCHI、TOHRU TANAMI、TOMOMI OTA、KATSUO HATAYAMA、SHOHEI HIGUCHI、FUSAO AMANUMA、KAORU SOTA
DOI:10.1248/cpb.34.4653
日期:——
A series of 2-phenylpropionic acids substituted with a C2-C6 alkenyl group at the para position was synthesized by hydrolysis of the corresponding esters prepared by a new nickel-catalyzed coupling reaction of aryl Grignard reagents and 2-bromopropionic acid ester. Among the 2-(4-alkenylphenyl)propionic acids thus obtained, 2-[4-(2-metyl-1-propenyl)phenyl]propionic acid showed the most potent antiinflammatory activity in the carrageenin edema test, while 2-[4-(3-methyl-2-butenyl)phenyl]propionic acid showed almost the same activity and significantly lower toxicity in comparison with those of ibuprofen.
通过新的镍催化偶联反应制备的芳基格氏试剂和2-溴丙酸酯对应的酯水解,合成了一系列在对位带有C2-C6烯基取代基的2-苯基丙酸。在其中得到的2-(4-烯基苯基)丙酸中,2-[4-(2-甲基-1-丙烯基)苯基]丙酸在角叉菜聚糖水肿试验中显示出最强的抗炎活性,而2-[4-(3-甲基-2-丁烯基)苯基]丙酸则显示出几乎相同的活性,并且与布洛芬相比毒性显著降低。