A New Homoisoflavanone from the Rhizomes of Polygonatum cyrtonema

作者：Gan, Li-She; Chen, Jin-Jie; Shi, Man-Fei; Zhou, Chang-Xin^*

来源：Natural Product Communications, 2013, 8(5): 597-598.

• Polygonatum cyrtonema
• Homoisoflavanone
• NMR
• TD DFT

A new homoisoflavanone, (3R)-5,7-dihydroxy-8-methyl-3-(2'-hydroxy-4'-methoxybenzyl)-chroman-4-one (1), was isolated from the 95% ethanol extract of the rhizomes of Polygonatum cyrtonema. The structure of 1 was determined by spectroscopic methods, especially 2D NMR techniques. Quantum chemical TD DFT calculations of the theoretical ECD spectrum of 1 allowed assignment of the absolute configuration as 3R.

• 出版日期2013-5
• 单位浙江大学