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Structure of seven new vibsane-type diterpenoids from Viburnum awabuki
被引:13
|作者:
Kubo, Miwa
[1
]
Nakai, Megumi
[1
]
Harada, Kenichi
[1
]
Fukuyama, Yoshiyasu
[1
]
机构:
[1] Tokushima Bunri Univ, Fac Pharmaceut Sci, 180 Yamashiro Cho, Tokushima, Tokushima 7708514, Japan
来源:
关键词:
Viburnum awabuki;
Caplifoliaceae;
Vibsane-type diterpenoid;
Neurite outgrowth-promoting activity;
PC12;
cells;
BIOLOGICAL-ACTIVITIES;
DERIVATIVES;
D O I:
10.1016/j.tet.2019.02.049
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Seven new vibsane-type diterpenoids, 6-O-methyl-6,7-dihydroxyvibsanin B (1), 4-hydroxyvibsanin A (2), 14(R*),15-epoxyneovibsanin B (3), 14(S*),15-epoxyneovibsanin B (4), (8Z)-neovibsanin B (5), 18-O-methylvibsanin C (6), and (8Z)-vibsanin E (7), have been isolated from the leaves of Viburnum awabuki. Their structures have been elucidated by molecular mechanics 2 (MM2) calculations and comparison of the spectroscopic data, including C-13 NMR data, with those of previously known compounds. Moreover, neovibsane-type diterpenoids 3, 4, and 5 enhanced the neurite outgrowth of NGF-mediated PC12 cells at a concentration of 40 mu M. (C) 2019 Elsevier Ltd. All rights reserved.
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页码:2379 / 2384
页数:6
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