Citation: Peng FU, Wei Dong ZHANG, Ting Zhao LI, Run Hui LIU, Hui Liang LI, Wei ZHANG, Hai Sheng CHEN. A New Bisxanthone from Hypericum japonicum Thunb. Ex Murray[J]. Chinese Chemical Letters, ;2005, 16(6): 771-773. shu

A New Bisxanthone from Hypericum japonicum Thunb. Ex Murray

Department of Natural Medicinal Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433

Received Date: 8 June 2004

Fund Project: The research work was supported by the National 863 program of China (2003AA2Z3507) Science and Technology Developping Foundation of Shanghai (02DZ19147, 01DJ19010). Authors thank Professor Han Chen ZHENG (Department of Pharmacognosy, School of Pharmacy, Second Military Medical University) for collecting Hypericum japonicum.

A new bisxanthone, named bijaponicaxanthone C, was isolated from the whole plant of Hypericum japonicum. The structure was elucidated as 6-[1",5",6"-trihydroxy-2"'-(β-hydroxy-β-methylethyl)-2"',3"'-dihydrofuran(5"',4"',3 ",4")xanthone-3"'-oxyl]-1,3,5-trihydroxy-4-isoprenylxanthone (1) on the basis of the spectral and chemical evidences.
- Hypericum japonicum,
- bisxanthone,
- 6-[l",
- 5",
- 6"-trihydroxy-2"'-(β-hydroxy-β-methylethyl)-2"',
- 3"'-dihydrofuran(5"',
- 4"',
- 3",
- 4")xanthone-3"'-oxyl]-1,
- 3,
- 5-trihydroxy-4-isoprenylxanthone,
- bijaponicaxanthone C
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