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1 .     1,7-dihydroxy-3,4-dimethoxyxanthone
     ÏàËÆ¶È:93.3%
Phytochemistry          2001          58          1245-1249
Xanthones from the stems of Securidaca inappendiculata
Xue-Dong Yang, Li-Zhen Xu, Shi-Lin Yang
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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2 .     1,7-Dihydroxy-3,4-dimethoxyxanththone
     ÏàËÆ¶È:93.3%
Phytochemistry          1992          31          309-311
Isoflavones and xanthones from Polygala virgata
Ahmad Bashir, Matthias Hamburger, Jerome D. Msonthi, Kurt Hostettmann
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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3 .     1,7-dihydroxy-3,4-dimethoxyxamthone
     ÏàËÆ¶È:80%
Chinese Pharmaceutical Journal          2002          37          574-577
Study on the chemical constituents from Vladimiria denticulata
ZHOU Jin yun, NING Bing mei, GAO Yong li, FANG Qi cheng
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

--------------------------------------------------------------------------------


4 .     securixanthone C
C14H10O6     ÏàËÆ¶È:78.5%
Acta Botanica Sinica          2003          45          365-368
Two New Xanthones from the Stems of Securidaca inappendiculata
YANG Xue-Dong XU Li-Zhen YANG Shi-Lin
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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5 .     1, 2, 7-trihydroxy-3-methoxyxanthone
C14H10O6     ÏàËÆ¶È:78.5%
Journal of Asian Natural Products Research          2006          8          41-46
Three new xanthones from the roots of Polygala japonica Houtt
JING FU, DONG-MING ZHANG and RUO-YUN CHEN
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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6 .     1,3,7-trihydroxy-2-methoxyxanthone
     ÏàËÆ¶È:78.5%
China Journal of Chinese Materia Medica          2005          30          827-830
Chemical constituents in roots of Polygala fallax and their anti-oxidation activities in vitro
LIN Lilin, HUANG Feng, CHEN Sibao, YANG Dajian, CHENG Shilin, YANG Junshan, XIAO Peigen
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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7 .     1,7-dihydroxy-2,3-dimethoxyxanthone
C15H12O6     ÏàËÆ¶È:73.3%
Chinese Traditional and Herbal Drugs          2005          36          1291-1293
Chemical constituents of Polygala tenuifolia
WANG Yu-ping; YANG Jun-shan; ZHANG Yu-mei; CHEN Jian-min
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

--------------------------------------------------------------------------------


8 .     compound 4
     ÏàËÆ¶È:73.3%
Acta Academiae Medicinae Sinicae          2004          26          364-366
Xanthones from Tibetan Medicine Halenia elliptica and Their Antioxidant Activity
Gao Jie Wang Su-juan Fang Fang Si Yi-kang Yang Yong-chun Liu Geng-tao Shi Jian-gong
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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9 .     gentisein
     ÏàËÆ¶È:71.4%
China Journal of Chinese Materia Medica          2009          34          2338-2342
Chemical constituents from twigs of Garcinia xipshuanbannaensis
NA Zhi, XU Youkai
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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10 .     1,4,7-trihydroxy-3-methoxy-xanthone
     ÏàËÆ¶È:71.4%
China Journal of Chinese Materia Medica          2007          32          819-821
Isolation and structure identitication of chemical constituents from Polygala hongkongensis II
WU Jianfeng, CHENG SiBao, WU Lijun, CHENG Shilin, TU PengFei
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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11 .     1,7-dihydroxy-3-methoxyxanthone
C14H10O5     ÏàËÆ¶È:71.4%
Phytochemistry          1991          30          2061-2065
Two xanthones from Polygala tenuifolia
Yukinobu Ikeya, Kô Sugama, Minoru Okada, Hiroshi Mitsuhashi
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

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12 .     1,7-dihydroxy-3-methoxyxanthone
     ÏàËÆ¶È:71.4%
Phytochemistry          1991          30          3625-3629
Xanthones fromChironia krebsii
Jean-luc Wolfender, Matthias Hamburger, Jerome D. Msonthi, Kurt Hostettmann
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

--------------------------------------------------------------------------------


13 .     Gentisin
C14H10O5     ÏàËÆ¶È:71.4%
Journal of Natural Medicines          2007          61          269-279
The chemical constituents of fresh Gentian Root
Hidehiro Ando, Yasuaki Hirai, Mikio Fujii, Yumiko Hori and Motonori Fukumura, et al.
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

--------------------------------------------------------------------------------


14 .     Gentisein
C13H8O5     ÏàËÆ¶È:71.4%
Journal of Natural Medicines          2007          61          269-279
The chemical constituents of fresh Gentian Root
Hidehiro Ando, Yasuaki Hirai, Mikio Fujii, Yumiko Hori and Motonori Fukumura, et al.
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ

--------------------------------------------------------------------------------


15 .     1,7-dihydroxy-3-methoxyxanthone
C14H10O5     ÏàËÆ¶È:71.4%
Chinese Traditional and Herbal Drugs          2005          36          1291-1293
Chemical constituents of Polygala tenuifolia
WANG Yu-ping; YANG Jun-shan; ZHANG Yu-mei; CHEN Jian-min
Structure      13C NMR   Ì¼Æ×Ä£Äâͼ
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