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Note | Regular issue | Vol 68, No. 9, 2006, pp.1917-1924
Published online, 29th June, 2006
DOI: 10.3987/COM-06-10787
Two New Macrocyclic Compounds from the Stems of Clematis armandii

Lihua Yan, Shilin Yang, Zhongmei Zou, Xiuzhen Luo, and Lizhen Xu*

*Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 151, North Malianwa Rd., XibeiWang, Hai-Dian District, Beijing 100094, China

Abstract

Phytochemical investigation of Clematis armandii (Ranunculaceae) has resulted in the isolation of two new macrocyclic compounds named clemoarmanosides A (1) and B (2), along with two known macrocyclic compounds berchemolide (3) and clemochinenoside B (4). The structures of 1 and 2 were elucidated on the basis of spectroscopic data and chemical methods. In addition, several 13C-NMR data of 4 were amended by 2D-NMR spectra analysis in this paper.