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
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