A New Phenolic Component from Triticum aestivum Sprouts and its Effects on LPS‐Stimulated Production of Nitric oxide and TNF‐α in RAW 264.7 Cells

An unusual new phenolic component, triticumoside (1), and eight known compounds, isoorientin (2), isoscoparin (3), (2R)‐2‐ O‐β ‐D‐glucopyranosyloxy‐4,7‐dimethoxy‐2H‐1,4‐benzoxazin‐3(4H)‐one (4), adenosine (5), β ‐sitosterol (6), daucosterol (7), 6′‐ O ‐linolenoyl daucosterol (8), α ‐tocopherol (9), were isolated from Triticum aestivum sprouts. The hybrid structure of 1, which is a hybrid between a flavone and a polyoxygenated benzene, is rarely found in natural sources. In addition, the effects of these compounds on LPS‐induced NO and TNF‐α production in RAW 264.7 cells were evaluated. At a concentration of 2.0 μM, compounds 2–4 significantly inhibited the production of both NO and TNF‐α. Compound 1 exhibited inhibitory activity on the secretion of TNF‐α at concentrations as low as 2.0 μM, but it did not reduce NO levels at any of the tested concentrations. Copyright © 2013 John Wiley & Sons, Ltd.