ChemInform Abstract: CYP3A4 Inhibitory Activity of New Bisalkaloids, Dipiperamides D and E, and Cognates from White Pepper
Autor: | T. Abe, Sachiko Tsukamoto, Bae Cheon Cha, Hiroshi Hirota, Keiko Miyakawa, Toshiyuki Hamada, Kyoko Tomise, Tomihisa Ohta |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | ChemInform. 33 |
ISSN: | 1522-2667 0931-7597 |
DOI: | 10.1002/chin.200249177 |
Popis: | Two new bisalkaloids, dipiperamides D and E, were isolated as inhibitors of a drug metabolizing enzyme cytochrome P450 (CYP) 3A4 from the white pepper, Piper nigrum. Their structures were elucidated by spectroscopic methods. Dipiperamides D and E showed potent CYP3A4 inhibition with IC50 values of 0.79 and 0.12 μM, respectively, and other metabolites from the pepper were moderately active or inactive. |
Databáze: | OpenAIRE |
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