Synthesis and cytotoxic activity of the N-acetylglucosamine-bearing triterpenoid saponins
作者:Peng Wang、Jun Wang、TianTian Guo、Yingxia Li
DOI:10.1016/j.carres.2010.01.002
日期:2010.3
Fourteen ursolic acid and oleanolic acid saponins with N-acetyl-beta-D-glucosamine, and (1 -> 4)-linked and (1 6)-linked N-acetyl-beta-D-glucosamine oligosaccharide residues were synthesized in a convergent manner. The structures of all compounds were confirmed by (1)H NMR and (13)C NMR spectroscopy and by mass spectrometry, and their cytotoxic activities were assayed in three cancer cell lines. Only oleanolic acid-3-yl beta-D-GluNAc showed significant cytotoxicity against HL-60 and BGC-823. (C) 2010 Published by Elsevier Ltd.
OKADA, YOSHIHITO;SHIBATA, SHOJI;JAVELLANA, ANA M. J.;KAMO, OSAMU, CHEM. AND PHARM. BULL., 36,(1988) N 4, 1264-1269
作者:OKADA, YOSHIHITO、SHIBATA, SHOJI、JAVELLANA, ANA M. J.、KAMO, OSAMU
DOI:——
日期:——
Design, synthesis and cytotoxic activity of N-Modified oleanolic saponins bearing A glucosamine
A series of N-acyl, N-alkoxycarbonyl, and N-alkylcarbamoyl derivatives of 2′-deoxy-glucosyl bearing oleanolic saponins were synthesized and evaluated against HL-60, PC-3, and HT29 tumor cancer cells. The SAR studies revealed that the activity increased in order of conjugation of 2′ -amino group with carbamate > amide > urea derivatives. Lengthening the alkyl chain increased the cytotoxicity, the peak