doi:10.1016/S1875-5364(21)60063-8

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HUANG Hang, TANG Chun-Ping, KE Chang-Qiang, SHU Ren-Geng, YE Yang. 3, 4-seco-Isopimarane and 3, 4-seco-pimarane diterpenoids from Callicarpa nudiflora [J].Chin J Nat Med, 2021, 19(8): 632-640. doi: 10.1016/S1875-5364(21)60063-8

Citation:

HUANG Hang, TANG Chun-Ping, KE Chang-Qiang, SHU Ren-Geng, YE Yang. 3, 4-seco-Isopimarane and 3, 4-seco-pimarane diterpenoids from Callicarpa nudiflora [J].Chin J Nat Med, 2021, 19(8): 632-640. doi: 10.1016/S1875-5364(21)60063-8

3, 4-seco-Isopimarane and 3, 4-seco-pimarane diterpenoids from Callicarpa nudiflora

摘要

Abstract: A phytochemical investigation was carried out on the extract of a medicinal plant Callicarpa nudiflora, resulting in the characterization of five new 3, 4-seco-isopimarane ( 1 − 5 ) and one new 3, 4-seco-pimarane diterpenoid ( 6 ), together with four known compounds. The structures of the new compounds were fully elucidated by extensive analysis of MS, 1D and 2D NMR spectroscopic data, and time-dependent density functional theory (TDDFT) calculation of electronic circular dichroism (ECD) spectra, and DFT calculations for NMR chemical shifts and optical rotations.

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