Article ID Journal Published Year Pages File Type
1366202 Bioorganic & Medicinal Chemistry Letters 2007 5 Pages PDF
Abstract

Two new diterpenes, named paralianone (2) and pepluene (3), based, respectively, on rare paraliane and pepluane skeletons, have been isolated from Euphorbia paralias, together with two known analogues (4 and 5), and their stereostructure determined by spectroscopic methods. The isolated compounds were tested as anti-inflammatory agents in vitro for evaluating their ability to inhibit the nitric oxide production in LPS-stimulated J774 murine macrophages. Compound 4 showed the highest anti-inflammatory activity comparable to those recently discovered for pepluanone (1). The data obtained provided first insights towards the structure–activity relationship of this class of compounds highlighting the key role of D-ring structure.

Graphical abstractThe isolation and structural characterization of paraliane and pepluane diterpenes are described. Preliminary pharmacological tests let us to draw structure–activity relationships on this incoming class of promising anti-inflammatory agents.Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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