A New Phenolic Diglycoside Produced in Response to Copper Toxicity and a New Flavan Dimer from the Leaves of Viburnum ichangense (HEMSL.) REHD.

作者：Wu, Bin^*; Wang, Kuiwu; Wu, Xiaodan

来源：Helvetica Chimica Acta, 2011, 94(9): 1677-1684.

• STRESS METABOLITE
• GLYCOSIDES
• FLAVONOIDS
• GLUCOSIDES
• BARK
• CONSTITUENTS
• IRIDOIDS

A new phenolic digycoside 1 was produced as stress metabolite in the fresh leaves of Viburnum ichangense (HEMSL.) REHD., in response to abiotic stress elicitation by CuCl2. The stress metabolite was characterized as 1-O-[alpha-L-arabinofuranosyl(1 -> 6)-beta-D-glucopyranosyl]-erythro-1,2-bis(4-hydroxy-3-methoxyphenyl)propane-1,3-diol (1). A new flavan dimer, 2,3-epoxyflavan-3',4',5,7-tetraol-(4 -> 8 '')-flavan-3 '',3''',4''',5''',6 ''-pentaol (2), and two known compounds, hovetrichoside A (3) and asperglaucide (4), were also isolated. Their structures were established by spectroscopic means.

• 出版日期2011-9
• 单位浙江大学; 浙江工商大学