Abstract
Three types of novel triptolide analogues with 9,11-olefin (3-5), five-membered unsaturated lactam ring (6-7) or A/B cis ring junction (8-14) were synthesized. Although with 9,11-olefin instead of 9,11-β-epoxide, compound 4a was much more active than the parent natural triptolide (1) with the lowest IC(50) value of 0.05nM for SKOV-3 cells, clearly challenging the traditional viewpoint on the necessity of 9,11-β-epoxide group of triptolide. In addition, structure-activity relationships for three classes of compounds were studied.
Copyright © 2010 Elsevier Ltd. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Antineoplastic Agents, Phytogenic / chemical synthesis*
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Antineoplastic Agents, Phytogenic / pharmacology*
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Cell Line, Tumor
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Crystallography, X-Ray
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Diterpenes / chemical synthesis*
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Diterpenes / pharmacology*
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Drug Screening Assays, Antitumor
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Epoxy Compounds / chemical synthesis
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Epoxy Compounds / pharmacology
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Humans
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Indicators and Reagents
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Models, Molecular
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Phenanthrenes / chemical synthesis*
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Phenanthrenes / pharmacology*
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Structure-Activity Relationship
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Tripterygium / chemistry
Substances
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Antineoplastic Agents, Phytogenic
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Diterpenes
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Epoxy Compounds
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Indicators and Reagents
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Phenanthrenes
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triptolide