Seven new amide alkaloids, named N-isobutyl-4-hexanoyl-4-hydroxypyrrolidin-1-one (1), (+/-)-erythro-1-(1-oxo-4,5-dihydroxy-2E-decaenyl)piperidine (2), (+/-)-threo-1-(1- oxo-4,5-dihydroxy-2E-decaenyl)piperidine (3), (+/-)-threo-N-isobutyl-4,5-dihydroxy-2E-octaenamide (4), 1-(1,6-dioxo-2E,4E-decadienyl)piperidine (5), 1-[1-oxo-3(3,4-methylenedioxy-5-methoxyphenyl)-2Z-propenyl]piperidine (6), and 1-[1-oxo-5(3,4-methylenedioxyphenyl)-2Z,4E-pentadienyl]pyrrolidine (7), were isolated from the roots of Piper nigrum, together with 32 known amides. Their structures were elucidated on the basis of spectroscopic analysis and chemical evidence.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/np030475e | DOI Listing |
Publication Analysis
Top Keywords
amide alkaloids
8
roots piper
8
piper nigrum
8
alkaloids roots
4
nigrum amide
4
alkaloids named
4
named n-isobutyl-4-hexanoyl-4-hydroxypyrrolidin-1-one
4
n-isobutyl-4-hexanoyl-4-hydroxypyrrolidin-1-one +/--erythro-1-1-oxo-45-dihydroxy-2e-decaenylpiperidine
4
+/--erythro-1-1-oxo-45-dihydroxy-2e-decaenylpiperidine +/--threo-1-1-
4
+/--threo-1-1- oxo-45-dihydroxy-2e-decaenylpiperidine
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!