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Note | Regular issue | Vol 75, No. 1, 2008, pp.177-181
Published online, 2nd October, 2007
DOI: 10.3987/COM-07-11200
Densispicnins A and B, Two Unusual Monoterpenes from Pedicularis densispica Franch.

Hong-biao Chu, Du-qiang Luo,* Ning-hua Tan, and Xuan Tian

*College of Life Science, Hebei University, China

Abstract

Two unusual monoterpenes, densispicnins A (1), B (2), together with the four known monoterpenes, mussaenoside (3), yuheinoside (4), mussaenin A (5), argyol (6), were isolated from the whole plant of Pedicularis densispica Franch. The structures of 1 and 2 were elucidated mainly based on spectral data including 1D-, 2D-NMR (HSQC, HMBC, ROESY) and MS experiments.