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Furanmonogones A and B: two rearranged acylphloroglucinols with a 4,5-seco-3(2H)-furanone core from the flowers of Hypericum monogynum
被引:27
|作者:
Xu, Wen-Jun
[1
]
Luo, Jun
[1
]
Li, Rui-Jun
[1
]
Yang, Ming-Hua
[1
]
Kong, Ling-Yi
[1
]
机构:
[1] China Pharmaceut Univ, Dept Nat Med Chem, State Key Lab Nat Med, 24 Tong Jia Xiang, Nanjing 210009, Jiangsu, Peoples R China
来源:
关键词:
POLYCYCLIC POLYPRENYLATED ACYLPHLOROGLUCINOLS;
A-D;
DERIVATIVES;
STEREOCHEMISTRY;
CHEMISTRY;
SKELETON;
ANALOGS;
D O I:
10.1039/c6qo00620e
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Furanmonogones A (1) and B (2), two rearranged acylphloroglucinols with an unprecedented 4,5-seco-3(2H)-furanone skeleton, were isolated from the flowers of Hypericum monogynum. Their structures were established based on 1D- and 2D-NMR data, quantum chemical predictions (QCP) of C-13 NMR chemical shifts, and electronic circular dichroism (ECD) calculations. Baeyer-Villiger oxidation at the single bond (C4-C5) of the acylphloroglucinol core was proposed as a key step in the plausible biogenetic pathway of 1 and 2.
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页码:313 / 317
页数:5
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