Abstract
New A-ring modified betulin and dihydrobetulin derivatives possessing the 2-cyano-1-en-3-one moiety were prepared and tested for cytotoxicity in seven cancer cell lines. The most active agent 9a synthesized in this account was further demonstrated to induce apoptosis and to activate caspases in malignant melanoma cells.
MeSH terms
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Antineoplastic Agents, Phytogenic / chemical synthesis
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Antineoplastic Agents, Phytogenic / toxicity
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Apoptosis / drug effects
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Betulinic Acid
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Cell Line, Tumor
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Cell Proliferation / drug effects
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Growth Inhibitors / chemical synthesis*
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Growth Inhibitors / toxicity*
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Humans
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Pentacyclic Triterpenes
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Triterpenes / chemical synthesis*
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Triterpenes / toxicity*
Substances
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Antineoplastic Agents, Phytogenic
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Growth Inhibitors
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Pentacyclic Triterpenes
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Triterpenes
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Betulinic Acid