Sesquiterpenes and lignans from the flower buds of Daphne genkwa and their nitric oxide inhibitory activities.

Zhang, C-Y, Luo, L, Xia, J, Song, Y-N, Zhang, L-J, Zhang, M, Rahman, K, Ye, Y, Zhang, H and Zhu, J-Y (2017) Sesquiterpenes and lignans from the flower buds of Daphne genkwa and their nitric oxide inhibitory activities. Natural Product Research. ISSN 1478-6419

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Abstract

Chemical investigation of the Daphne genkwa has led to the isolation of four sesquiterpenes (1a/1b, 2 and 3), including one pair of sesquiterpene enantiomers (1a/1b), 1a is a new compound (+)-4-hydroxy-10-epirotundone, and twelve lignans (4-15). Their structures were elucidated by spectroscopic analysis, and the absolute configurations of 1a/1b were determined by CD analysis. All compounds were examined for their inhibitory effects on the nitric oxide (NO) production induced by lipopolysaccharide (LPS) in BV-2 microglial cells, and compounds 7-10 exhibited pronounced inhibition on NO production with IC50 values in the range of 5.8-10.2 μM, being more active than the positive control, quercetin (IC50 = 17.0 μM).

Item Type:	Article
Additional Information:	This is an Accepted Manuscript of an article published by Taylor & Francis in Natural Product Research on 20th October 2017, available online: http://www.tandfonline.com/10.1080/14786419.2017.1389937
Uncontrolled Keywords:	MD Multidisciplinary
Subjects:	Q Science > QK Botany R Medicine > RM Therapeutics. Pharmacology
Divisions:	Pharmacy and Biomolecular Sciences
Publisher:	Taylor & Francis
Related URLs:	https://www.ncbi.nlm.nih.gov/pubmed/29052451
Date of acceptance:	22 September 2017
Date of first compliant Open Access:	20 October 2018
Date Deposited:	08 Nov 2017 10:03
Last Modified:	04 Sep 2021 03:39
DOI or ID number:	10.1080/14786419.2017.1389937
URI:	https://ljmu-9.eprints-hosting.org/id/eprint/7483

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