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Chemical constituents of Thai propolis

Author:
Athikomkulchai, Sirivan, Awale, Suresh, Ruangrungsi, Nijsiri, Ruchirawat, Somsak, Kadota, Shigetoshi
Source:
Fitoterapia 2013 v.88 pp. 96-100
ISSN:
0367-326X
Subject:
chemical composition, esters, flavonoids, nuclear magnetic resonance spectroscopy, propolis
Abstract:
Phytochemical investigation on the constituents of Thai propolis led the isolation of a new phenylallylflavanone, (7″S)-8-[1-(4′-hydroxy-3′-methoxyphenyl)prop-2-en-1-yl]-(2S)-pinocembrin (1) and (E)-cinnamyl-(E)-cinnamylidenate (2) from methanolic extract of Thai propolis. Their structures were determined on the basis of extensive NMR spectroscopic analysis. In addition to this, 19 compounds (3–21) belonging to flavonoids and phenolic esters were isolated and identified.
Agid:
1123974