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A new bisxanthone from Hypericum japonicum.

Zhang WD, Fu P, Liu RH, Li TZ, Li HL, Zhang W, Chen HS

Department of Phytochemistry, College of Pharmacy, Second Military Medical University, No. 325, Guohe Rd., Shanghai 200433, People's Republic of China; School of Pharmacy, Shanghai Jiao Tong University, No. 1954, Huashan Rd., Shanghai 200030, People's Republic of China.

A new bisxanthone, named jacarelhyperols D (1), was isolated from the whole plant of Hypericum japonicum. Its chemical structure was elucidated as 6-[1',5',6'-trihydroxy-2''-(alpha-hydroxy-alpha-methyl)ethyl-3'',4''-dihydrofuran (2'',3'',3',4') xanthone-3''-oxyl]-1,3,5-trihydroxy-xanthone on the basis of spectroscopic analysis.

Published 20 December 2006 in Fitoterapia, 78(1): 74-75.
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