(Article)
Department of Pharmacognosy and Pharmaceutical Botany, Chulalongkorn University, Bangkok, Thailand
Abstract
From the whole plant of Dendrobium tortile, a new compound, namely 4-(2-hydroxypropyl)-2(5H)-furanone, was isolated, together with six known compounds, which included trans-tetracosylferulate (2), cis-docosylferulate (3), p-hydroxybenzaldehyde (4), 3,4-dihydroxy-3,4 α -dimethoxybibenzyl (5), (2S)-eriodictyol (6) and dendrofalconerol A (7). The structures of these compounds were determined through analysis of 1-D and 2-D NMR and HR-ESI-MS data. All of the isolates were evaluated for their α -glucosidase inhibitory activity. Compound 7 showed strong α -glucosidase inhibitory activity when compared with the positive control acarbose, whereas compounds 5 and 6 exhibited appreciable effects. An enzyme kinetic study revealed that compound 7 is a non-competitive inhibitor of α -glucosidase. This is the first report of the chemical constituents with biological activity from D. tortile. © 2016 ACG Publications. All rights reserved.
Author keywords
2(5H)-furanone; Bisbibenzyl; Dendrobium tortile; Orchidaceae; α-glucosidase
ISSN: 13076167Source Type: Journal Original language: English
Document Type: Article
Publisher: ACG Publications
Sritularak, B.; Department of Pharmacognosy and Pharmaceutical Botany, Chulalongkorn University, Thailand; email:boonchoo.sr@chula.ac.th
© Copyright 2016 Elsevier B.V., All rights reserved.
© Copyright 2016 Elsevier B.V., All rights reserved.