- Human cytochrome P450 liability studies of trans-dihydronarciclasine: A readily available, potent, and selective cancer cell growth inhibitor
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The cytochrome P45O activities of the naturally occurring Amaryllidaceae alkaloid narciclasine (3), isolated from Narcissus pseudonarcissus, and synthetic derivative trans-dihydronarciclasine (5) are reported. While narciclasine was found to possess potent inhibitory activity to human CYP3A4, its dihydro analogue was inactive. This study revealed that the C1-C10b double bond is required for inhibition of this crucial metabolizing enzyme. Compound 5 also demonstrated no inhibition of the related human cytochromes CYP19 and CYP1A1. This study elevates the status of trans-dihydronarciclasine (5) as a highly privileged, readily available molecule, with potent and selective anticancer activity.
- McNulty, James,Thorat, Amol,Vurgun, Nesrin,Nair, Jerald J.,Makaji, Emilija,Crankshaw, Denis J.,Holloway, Alison C.,Pandey, Siyaram
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p. 106 - 108
(2011/04/17)
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- ISOCARBOSTYRIL ALKALOID DERIVATIVES HAVING ANTI-PROLIFERATIVE AND ANTI-MIGRATORY ACTIVITIES
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Isocarbostyril alkaloid derivatives having an anti-proliferative and anti-migratory activities are disclosed. In particular, compounds of formula (I) or (II), as well as stereoisomers, tautomers, racemates, prodrugs, metabolites thereof, pharmaceutically acceptable salt and/or solvate are encompassed which are useful in the treatment and prophylaxis of cancer. Methods of preparation are also disclosed.
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Page/Page column 93-94
(2010/04/23)
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- Antineoplastic agents. 454. Synthesis of the strong cancer cell growth inhibitors trans-dihydronarciclasine and 7-deoxy-trans-dihydronarciclasine
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To further pursue the antineoplastic leads offered by our isolation of trans-dihydronarciclasine (1a) and 7-deoxy-transdihydronarciclasine (1c) from two medicinal plant species of the Amaryllidaceae family, a practical palladium-catalyzed hydrogenation procedure was developed for the synthesis of these isocarbostyrils from narciclasine (2a) and 7-deoxynarciclasine (2c).
- Pettit, George R.,Ducki, Sylvie,Eastham, Stephen A.,Melody, Noeleen
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p. 1279 - 1282
(2009/12/26)
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