Abstract:
: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 IC(50) values of 0.79 and 0.12 microM, respectively, and other metabolites from the pepper were moderately active or inactive.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Tsukamoto S,Tomise K,Miyakawa K,Cha BC,Abe T,Hamada T,Hirota H,Ohta Tdoi
10.1016/s0968-0896(02)00130-xsubject
Has Abstractpub_date
2002-09-01 00:00:00pages
2981-5issue
9eissn
0968-0896issn
1464-3391pii
S096808960200130Xjournal_volume
10pub_type
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