Abstract：
AIM:To investigate the chemical constituents from the leaves of Broussonetia papyrifera. METHODS:The chemical constituents were isolated and purified by macroporous adsorptive resin D101, silica gel, and ODS column chromatography and preparative HPLC. Their structures were elucidated on the basis of 1D and 2D NMR analyses. In addition, their cytotoxic activity against human hepatoma carcinoma cells (HepG-2) were evaluated by the MTT method. Furthermore, RP-HPLC and colorimetric methods were used for the analysis of cosmosiin and total flavonoids. RESULTS:A new lignan, together with five known compounds were obtained, and their structures were characterized as (+)-pinoresinol-4'-O-β-D-glucopyranosyl-4″-O-β-D-apiofuranoside (1), cosmosiin (2), luteolin-7-O-β-D-glucopyranoside (3), liriodendrin (4), 3, 5, 4'-trihydroxy-bibenzyl-3-O-β-D-glucoside (5), and apigenin-6-C-β-D-glucopyranside (6). Furthermore, RP-HPLC and colorimetric methods were established for the analysis of cosmosiin and total flavonoids. CONCLUSION:Compound 1 was a new lignan, and compounds 5 and 6 were isolated for the first time from the title plant. Compounds 1, 4 and 6 showed definite activities against HepG-2, while the other compounds didn't show inhibitory effects. The optimal harvest time of B. papyrifera (L.) Vent. is September.
journal_name
Chin J Nat Medjournal_title
Chinese journal of natural medicinesauthors
Ran XK,Wang XT,Liu PP,Chi YX,Wang BJ,Dou DQ,Kang TG,Xiong Wdoi
10.1016/S1875-5364(13)60027-8subject
Has Abstractpub_date
2013-05-01 00:00:00pages
269-73issue
3eissn
2095-6975issn
1875-5364pii
S1875-5364(13)60027-8journal_volume
11pub_type
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