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Bioorg Med Chem Lett. 2014 May 1;24(9):2202-5. doi: 10.1016/j.bmcl.2014.03.004. Epub 2014 Mar 12.

Synthesis and cytotoxic activity of nitric oxide-releasing isosteviol derivatives.

Author information

  • 1Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tongjiaxiang Road, Nanjing 210009, China; Zhenjiang Institute for Drug Control, 62 Nanxu Road, Zhenjiang 212000, China.
  • 2Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tongjiaxiang Road, Nanjing 210009, China.
  • 3Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tongjiaxiang Road, Nanjing 210009, China. Electronic address: chenliduo12@gmail.com.

Abstract

Fifteen novel hybrids containing diterpene skeleton and nitric oxide (NO) donor were prepared from isosteviol. All the compounds were tested on preliminary cytotoxicity, and the results showed that six target compounds (8c, 10b, 14a, 14c, 18c, and 18d) exhibited anti-proliferation activity on HepG2 cells, with 8c (IC50=4.24 μM) and 18d (IC50=2.75 μM) superior to the positive control CDDO-Me (2-cyano-3,12-dioxooleana-1,9(11)-dien-28-acid methyl ester, IC50=4.99 μM); eleven target compounds (8a-c, 9a-c, 10a-b, 14a, 14c, 18d) exhibited anti-proliferation activities on B16F10 cells at different levels, among them, seven compounds were more potent than comptothecin (IC50=2.78 μM) and CDDO-Me (IC50=5.85 μM), particularly, 10b (IC50=0.02 μM) presented the strongest effect, which was selected as a candidate for further study.

Copyright © 2014 Elsevier Ltd. All rights reserved.

KEYWORDS:

Cytotoxicity; Furoxan; Isosteviol; NO-donor; Structural modification

PMID:
24685545
[PubMed - indexed for MEDLINE]
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