Abstract
We previously reported that the phenanthroindolizidine alkaloid 3 and its derivatives had markedly potent in vitro cytotoxicity. However, they had low in vivo antitumor activities and high in vivo toxicities, which was a serious problem for further development. Based on the finding that antitumor activity and toxicity could be improved by acetylation of 3, we synthesized new derivatives of 3, which possessed various acyl groups, and evaluated their antitumor activities and toxicities. We found that derivatives with sterically less bulky acyl groups had improved antitumor activities.
Keywords: Asclepiadaceae family, Ideopsis similis, alkaloids, acylated derivatives, anti-inflammatory, Meth A sarcoma, cytotoxicities, pharmacokinetic parameters, Carbonate-type derivatives, H-NMR spectra
Letters in Drug Design & Discovery
Title:Synthesis of Phenanthroindolizidine Alkaloids with an Acyloxy Group at the C3 Position and their Antitumor Activities and Toxicities
Volume: 9 Issue: 5
Author(s): Takashi Ikeda, Takashi Yaegashi, Takeshi Matsuzaki, Ryuta Yamazaki, Satoshi Ueno, Syusuke Hashimoto, Seigo Sawada
Affiliation:
Keywords: Asclepiadaceae family, Ideopsis similis, alkaloids, acylated derivatives, anti-inflammatory, Meth A sarcoma, cytotoxicities, pharmacokinetic parameters, Carbonate-type derivatives, H-NMR spectra
Abstract: We previously reported that the phenanthroindolizidine alkaloid 3 and its derivatives had markedly potent in vitro cytotoxicity. However, they had low in vivo antitumor activities and high in vivo toxicities, which was a serious problem for further development. Based on the finding that antitumor activity and toxicity could be improved by acetylation of 3, we synthesized new derivatives of 3, which possessed various acyl groups, and evaluated their antitumor activities and toxicities. We found that derivatives with sterically less bulky acyl groups had improved antitumor activities.
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Cite this article as:
Takashi Ikeda, Takashi Yaegashi, Takeshi Matsuzaki, Ryuta Yamazaki, Satoshi Ueno, Syusuke Hashimoto, Seigo Sawada , Synthesis of Phenanthroindolizidine Alkaloids with an Acyloxy Group at the C3 Position and their Antitumor Activities and Toxicities, Letters in Drug Design & Discovery 2012; 9 (5) . https://dx.doi.org/10.2174/157018012800389232
DOI https://dx.doi.org/10.2174/157018012800389232 |
Print ISSN 1570-1808 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-628X |
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