Synthesis and Cytotoxicity of Triterpenic Acids Modified at C3 and C28 Positions
作者:E. F. Khusnutdinova、A. V. Petrova、O. B. Kazakova、A. E. Barmashov
DOI:10.1134/s1068162019050042
日期:2019.11
Series of N-, S- and Br-derivatives of betulinic, oleanolic, and ursolic acids have been synthesized and screened for their in vitro antitumor activity (cytotoxicity). N-Methylpiperazinylamide of 2-[3-pyridinylidene]-ursolic acid and methyl 2-methylideneureido-betulonate have shown significant cytotoxic activity against the PC3 cancer cells (IC50 = 8 mu M) and HCT-116 cell line (IC50 = 5.7 mu M).
Synthesis, modification, and antimicrobial activity of the N-methylpiperazinyl amides of triterpenic acids
作者:O. B. Kazakova、G. V. Giniyatullina、G. A. Tolstikov、N. I. Medvedeva、T. M. Utkina、O. L. Kartashova
DOI:10.1134/s1068162010030155
日期:2010.5
N-methylpyperazinyl amides of betulinic, platanic, glycyrrhetic, oleanolic, ursolic, and moronic acids were synthesized and modified. Betulin and betulonic acid showed antimicrobial activity against Staphylococcus aureus at a concentration of 90 mg/ml, and betulin manifested a bacteriostatic effect against Klebsiella pneumoniae at a concentration of 60 mg/ml. Among the studied N-methylpyperazinyl amides, the highest activity against S. aureus was observed for a betulonic acid derivative.