Studies on the novel α-glucosidase inhibitory activity and structure–activity relationships for andrographolide analogues
摘要:
A series of analogues of andrographolide were synthesized and evaluated as novel alpha-glucosidase inhibitors. Among them compound 23, 15-p-methoxylbenzylidene 14-deoxy-11, 12-didehydroandrographolide, was a potent inhibitor against alpha-glucosidase Whose IC50 value was 16 mu M. The structure-activity relationships were also discussed. (C) 2006 Elsevier Ltd. All rights reserved.
Studies on the novel α-glucosidase inhibitory activity and structure–activity relationships for andrographolide analogues
作者:Gui-Fu Dai、Hai-Wei Xu、Jun-Feng Wang、Feng-Wu Liu、Hong-Min Liu
DOI:10.1016/j.bmcl.2006.02.011
日期:2006.5
A series of analogues of andrographolide were synthesized and evaluated as novel alpha-glucosidase inhibitors. Among them compound 23, 15-p-methoxylbenzylidene 14-deoxy-11, 12-didehydroandrographolide, was a potent inhibitor against alpha-glucosidase Whose IC50 value was 16 mu M. The structure-activity relationships were also discussed. (C) 2006 Elsevier Ltd. All rights reserved.
Anti-HIV activity of semisynthetic derivatives of andrographolide and computational study of HIV-1 gp120 protein binding
作者:Mayur M. Uttekar、Tiyasa Das、Rohan S. Pawar、Beena Bhandari、Vidya Menon、Nutan、Satish K. Gupta、Sujata V. Bhat
DOI:10.1016/j.ejmech.2012.07.030
日期:2012.10
Andrographolide, a diterpene lactone of the Andrographis paniculata, displays anti-HIV activity in vitro. A series of andrographolide derivatives have been synthesized and evaluated for their anti-HIV activity in a cell-free virus infectivity assay using TZM-bl cells. As compared to andrographolide, 3-nitrobenzylidene derivative 6 showed higher in vitro anti-HIV activity, whereas 2',6'-dichloro-nicotinoyl ester derivative 9 showed higher Therapeutic Index. The andrographolide and its derivatives, 6 and 9, inhibited gp120-mediated cell fusion of HL2/3 cells (expressing gp120 on its surface) with TZM-bl cells (expressing CD4 and co-receptors CCR5 & CXCR4). Further, computational studies revealed that these molecules bind to the important residues of V3 loop of gp120. These results suggest that andrographolide derivatives may be promising candidates for prevention of HIV infection. (C) 2012 Elsevier Masson SAS. All rights reserved.