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Inhibitory effects of compounds from Styrax obassia on NO production. | LitMetric

Inhibitory effects of compounds from Styrax obassia on NO production.

Bioorg Med Chem Lett

College of Pharmacy, Drug Research and Development Center, Catholic University of Daegu, Gyeongbuk 712-702, Republic of Korea. Electronic address:

Published: November 2015

AI Article Synopsis

Article Abstract

Two new benzofurans, 2-(3,4-dimethoxyphenyl)-5-(1,3-dihydroxypropyl)-7-methoxybenzofuran (1) and 2-(3,4-methylenedioxyphenyl)-5-(3-hydroxymethyletoxy-1-hydroxypropyl)-7-methoxybenzofuran (2), a new triterpene, 3β, 6β, 21β-trihydroxyolean-12-ene (3), and eleven known compounds were isolated from the stem bark of Styrax obassia. The structures of the isolated compounds were established by extensive spectroscopic analyses, including 1D and 2D NMR and HRMS. Their anti-inflammatory activities were evaluated against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.7 macrophages. Compound 1 was shown to reduce LPS-induced iNOS expression in a dose-dependent manner. In addition, pretreating cells with 1 significantly suppressed their LPS-induced expression of COX-2 protein.

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http://dx.doi.org/10.1016/j.bmcl.2015.10.020DOI Listing

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