Three new xanthones from the roots of Polygala japonica Houtt.
Three new xanthones, 1,3-dihydroxy-2,5,6,7-tetramethoxyxanthone (1), 3-hydroxy-1,2,5,6,7-pentamethoxyxanthone (2), and 3,8-dihydroxy-1,2,6-trimethoxyxanthone (3), together with two known compounds were isolated from the roots of Polygala japonica Houtt. Their structures were determined on the basis of spectroscopic data.
Xue
Qing-Chun
QC
Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Li
Chuang-Jun
CJ
Zuo
Li
L
Yang
Jing-Zhi
JZ
Zhang
Dong-Ming
DM
D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D031801:Polygala / Q000737:chemistry*; D044004:Xanthones / Q000737:chemistry / Q000302:isolation & purification*
C541317:1,3-dihydroxy-2,5,6,7-tetramethoxyxanthone; C541319:3,8-dihydroxy-1,2,6-trimethoxyxanthone; C541318:3-hydroxy-1,2,5,6,7-pentamethoxyxanthone; D004365:Drugs, Chinese Herbal; D044004:Xanthones