New dimeric phthalides from Ligusticum sinense Oliv cv. Chaxiong

Abstract

A new dimeric phthalide, chaxiongnolide A (1), and a new natural product, chaxiongnolide B (2), together with a known compound Z-ligustilide (3), were isolated from the rhizome of Ligusticum sinense Oliv cv. Chaxiong. Their structures were elucidated by various spectroscopic methods and confirmed by X-ray crystallographic analysis.

Keywords::

• dimeric phthalides; Ligusticum sinense Oliv cv. Chaxiong
• chaxiongnolide A
• chaxiongnolide B

Acknowledgments

Financial support from the National Science and Technology Project of China (No. 2012ZX09301002-002-PCSIRT1007) and from the National Science and Technology Project of China (No. 2011ZX09307-002-01) is acknowledged.