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Short Paper | Regular issue | Vol 89, No. 5, 2014, pp.1245-1253
Published online, 27th March, 2014
DOI: 10.3987/COM-14-12970
New Monoterpenoid Indole Alkaloids from Gelsemium elegans

Wei Zhang, Sheng-Yuan Zhang, Zhi-Qi Yin, Lei Wang,* and Wen-Cai Ye*

*Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, 601 West Huangpu Avenue, Guangzhou, 510632, China

Abstract

Three new monoterpenoid indole alkaloids, 18, 19-dihydro-21-oxokoumine (1), 14-hydroxygelselegine (2) and Nb-methyl-19, 20-dihydrorankinidine (3), together with five known alkaloids (4-8) were isolated from the roots of Gelsemium elegans. The structures with absolute configurations of the new compounds were elucidated on the basis of HR-ESI-MS, NMR, CD spectra analysis and single crystal X-ray diffraction.