Synthesis and anti-cancer activity of some novel C-17 analogs of ursolic and oleanolic acids
作者:Uppuluri V. Mallavadhani、Anita Mahapatra、Banita Pattnaik、Nagireddy Vanga、Nitasha Suri、Ajit K. Saxena
DOI:10.1007/s00044-012-0106-y
日期:2013.3
A series of seventeen novel analogs of ursolic and oleanolicacid were synthesized (60–98 %), and evaluated for their anti-cancer potential against a panel of eight human cancer cell lines. Compounds (3–10) showed comparable or better activities than their respective parent compounds against SiHa and HeLa (Cervix), A-549 (Lung), and IMR-32 (Neuroblastoma) cancer cell lines. Significantly, among the
Due to the obvious adverse effects of 5-fluorouracil that limit its clinical usefulness and considering the diverse biological activities of pentacyclic triterpenes, twelve pentacyclic triterpene-5-fluorouracil conjugates were synthesized and their antitumor activities were evaluated. The results indicated that all the single substitution targeted hybrids (7a–12a) possessed much better antiproliferative
antitumor activity of the batch of (R)-lipoic acidderivatives. And among them, only compound 13a exhibited moderate anti-proliferation activity against both K562 and K562/ADR cell lines, while it exhibited no anti-proliferation activity against BEL-7402 and L-O2 cell lines. Therefore, it suggested that it was not suitable for hybridization of hydrogen sulfide donors attached to oleanolic acid, ursolic
To discover novel nitrogen mustards, the reported mustard pharmacophore was combined with natural pentacyclic triterpenes, which are characterized with pharmacological and structural diversity. Thus, six conjugates were synthesized with 1,2,3‐triazole linking N,N‐bis (2‐chloroethyl)‐1,4‐phenylenediamine and oleanolic acid, ursolic acid, or glycyrrhetinic acid, and their biological activity was evaluated