Novel Neolignan from Penthorum chinense |
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Authors: | Tao Zhang Yao-Ming Chen Guo-Lin Zhang |
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Institution: | (Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences;, Chengdu 610041, China;Graduate University of Chinese Academy of Sciences;, Beijing 100039, China;Chengdu Institute of Biology, Chinese Academy of Sciences;, Chengdu 610041, China ) |
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Abstract: | A new neolignan (7′E)‐2′,4,8‐trihydroxy‐3‐methoxy‐2,4′‐epoxy‐8,5′‐neolign‐7′‐en‐7‐one (1) was isolated from the whole plants of Penthorum chinense Pursh, along with lupeol (2), betulinic acid (3), glyceryl monopalmitate (4), β‐sitosterol (5), palmitic acid (6), ursolic acid (7), 2β,3β,23‐trihydroxy‐urs‐12‐ene‐28‐oic acid (8), glyceryl monolaurate (9), scopoletin (10), (–)syringaresinol (11), 9,9′‐O‐diferuloyl‐(–)‐secoisolariciresionl (12), pinocembrin (13), apigenin (14), kaempferol (15), luteolin (16), β‐daucosterol (17), quercetin (18), 1‐O‐(β‐D‐glucopyranosyl)‐(2S, 2′R, 3R,4E,8E)‐2‐(2′‐hydroxyhexadecanoylamino)‐4,8‐octdecadiene‐1,3‐diol (19), gallic acid (20), pinocembrin‐7‐O‐β‐D‐glucoside (21), and quercetin‐3‐O‐β‐D‐glucoside (22). The structures of these compounds were elucidated on the basis of chemical and spectral evidence. |
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Keywords: | Gansu neolignan Penthorum chinense pinocembrin quercetin |
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