Journal ArticleDOI
Phenanthrene lactams from Goniothalamus velutinus
Siraj Omar,Chang Leng Chee,Fasihuddin B. Ahmad,Jiu Xiang Ni,Hasan Jaber,Jinasheng Huang,Tetsuo Nakatsu +6 more
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TLDR
A new phenanthrene lactam, designated as velutinam (10amino-8-hydroxy-3,4-dimethoxyphenanthrene-1-carboxylic acid lactam), was isolated from an extract of the bark of Goniothalamus velutinus as mentioned in this paper.About:
This article is published in Phytochemistry.The article was published on 1992-12-01. It has received 48 citations till now. The article focuses on the topics: Lactam.read more
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Phytochemical screening, total phenolics and antioxidant activities of bark and leaf extracts of Goniothalamus velutinus (Airy Shaw) from Brunei Darussalam
TL;DR: In this article, the authors used colorimetric methods to determine the total phenolic, total flavonoids, and various in vitro antioxidant activities (DPPH, ABTS and FRAP) of methanolic extract.
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Naturally occurring aristolactams, aristolochic acids and dioxoaporphines and their biological activities
TL;DR: Aristolactams, having a phenanthrene chromophore are a small group of compounds mainly found in the Aristolochiaceae together with the aristolochic acids and 4,5-dioxoaporphines, which are reviewed and classified on the basis of their oxygenation pattern.
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Naturally occurring aristolochic acid analogues and their toxicities
Johanna Michl,Martin Ingrouille,Monique S. J. Simmonds,Monique S. J. Simmonds,Michael Heinrich,Michael Heinrich +5 more
TL;DR: In vivo and in vitro toxicity and mutagenicity of these three classes of compounds are discussed and the review gives an update of aristolochic acids, aristolactams and 4,5-dioxoaporphines reported between 2003 and 2013 and their biological activities.
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Aristolactams and dioxoaporphines from Fissistigma balansae and Fissistigma oldhamii
TL;DR: Investigation of extracts of FISSistigma balansae and Fissistigma oldhamii resulted in the isolation of 11 aristolactams-stigmalactam and two dioxoaporphines, noraristolodione (12) and norcepharadione B (13).
References
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Journal ArticleDOI
Seven aristololactams from Aristolochia argentina
TL;DR: Seven aristololactam alkaloids were isolated from Aristolochia argentina and five are reported for the first time.
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Aristololactams of Aristolochia argentina
TL;DR: Four new lactams have been isolated and characterized from the roots of Aristolochia argentina and are characterized as new types of lactams with unknown mechanisms.
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Aristololactams of Goniothalamus sesquipedalis wall. Revised structures of the 2-oxygenated aristololactams
TL;DR: Goniopedaline, a new phenanthrene lactam, aristololactam A-II and its N,O-diacetyl derivative, taliscanine (second natural occurrence), aurantiamide acetate and β-sitosterol and its β- d -glucoside have been isolated from the leaves and twigs of Goniothalamus sesquipedalis as discussed by the authors.
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Aristolactams of Orophea enterocarpa
TL;DR: Two new aristolactams named as enterocarpam-I and enterocarambam-II have been isolated and characterized from the stem bark of Orophea enterocalarpa as discussed by the authors.