Stereoselective synthesis of bioactive isosteviol derivatives as α-glucosidase inhibitors
作者:Ya Wu、Jing-Hua Yang、Gui-Fu Dai、Cong-Jun Liu、Guo-Qiang Tian、Wen-Yan Ma、Jing-Chao Tao
DOI:10.1016/j.bmc.2009.01.017
日期:2009.2
Considerable interest has been attracted in isosteviol and its derivatives because of their large variety of pharmacological activities. In this project, a series of novel compounds containing hydroxyl, hydroxymethyl group and heteroatom-containing frameworks fused with isosteviol structure were synthesized and evaluated as alpha-glucosidase inhibitors, aimed at clarifying the structure-activity correlation. The results indicated that these isosteviol derivatives were capable of inhibiting in vitro alpha-glucosidase with moderate to good activities. Among them, indole derivative 15b exhibited the highest activities and thus may be exploitable as a lead compound for the development of potent alpha-glucosidase inhibitors. (c) 2009 Published by Elsevier Ltd.
Stereoselective Synthesis, Characterization, and Antibacterial Activities of Novel Isosteviol Derivatives with D-Ring Modification
作者:Ya Wu、Cong-Jun Liu、Xu Liu、Gui-Fu Dai、Jin-Yu Du、Jing-Chao Tao
DOI:10.1002/hlca.201000046
日期:2010.10
Considerable interests have been attracted by isosteviol and its derivatives because of their large variety of bioactivities. In this project, a series of novel 15‐ and 16‐substituted isosteviolderivatives were stereoselectively prepared by means of functional interconversions in ring D of the tetracyclic diterpene isosteviol. All compounds synthesized were characterized by analysis of NMR, IR, HR‐MS