Citation: Hong Ping HE, Yue Mao SHEN, Guo Ying ZUO, Wei Ming ZHU, Xiao Sheng YANG, Xiao Jiang HAO. Two New O-terpenoidal Coumarins, Excavacoumarin A and B from Clausena excavata[J]. Chinese Chemical Letters, ;2000, 11(6): 539-542. shu

Two New O-terpenoidal Coumarins, Excavacoumarin A and B from Clausena excavata

Laboratory of Phytochemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204

Received Date: 25 November 1999
Revised Date: 10 March 2000

Fund Project: This work was financially supported by the National Foundation for Outstanding Young Scientists to Prof. Xiao-Jiang Hao (No.39525025). All spectra were recorded by the analytical group of Laboratory of Phytochemistry, Kunming Institute of Botany, Chinese Academy of Sciences, P R China.

Two new O-terpenoidal coumarins named excavacoumarin A (2), B (3), and a known one 1 were isolated from the leaves of Clausena excavata Burm. f. (Rutaceae) collected in Xishuangbanna, Yunnan. Structure elucidation and unambiguous NMR assignments for the title compounds were carried out on the basis of 1D and 2D NMR experiments.
- Coumarin,
- Clausena excavata,
- excavacoumarin A,
- excavacoumarin B
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