Two new monoterpenoid indole alkaloids from Tabernaemontana divaricata |
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| Authors: | Huansha Yuwen Yuxi Yuan Xiaojiang Hao Yu Zhang |
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| Affiliation: | 1. Yunnan University of Traditional Chinese Medicine, Kunming, China;2. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China;3. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China |
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| Abstract: | Two new monoterpenoid indole alkaloids, tabervarines A (1) and B (2), along with seven known monoterpenoid indole alkaloids, were isolated from the methanol extract of the twigs and leaves of Tabernaemontana divaricata. The structures including the absolute configurations of the new alkaloids were elucidated based on MS, NMR, and ECD calculation. The in vitro cytotoxic activities of the isolated alkaloids against several human cancer cell lines were also evaluated. |
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| Keywords: | Tabernaemontana divaricata tabervarine A tabervarine B monoterpenoid indole alkaloids |
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