Kinetic resolution of tropic acid ethyl ester and its derivatives by lipase PS
作者:Mary Rose Atuu、Syed J. Mahmood、Frank Laib、M. Mahmun Hossain
DOI:10.1016/j.tetasy.2004.08.013
日期:2004.10
The first kinetic resolution of tropicacid ethyl ester (TAEE) with lipase PS and vinyl acetate as an acylating agent is reported. The resulting (S)-(−)-3-acetoxy tropicacid ethyl ester and (R)-(+)-tropic acid ethyl ester are produced in high yields and in excellent ee (87–94%). The method has been extended to resolve a variety of tropicacid ester derivatives. In addition, an improved method for
α-glucosidase with IC50 value of 46.81 μM and 83.76 μM, respectively. Compounds 9 and 22 exhibit comparable good antidiabetic activities as commercial drug Glimepiride. In addition, Schiff bases of α-substituted arylacetates show antitumor activities against human cancer cell lines, where compound 9 with thiourea moiety performs the best antitumor activity. We anticipate that our research will provide potential