Three New Benzophenone-Xanthone Dimers from the Root of Garcinia dulcis.

• IINUMA Munekazu

• TOSA Hideki

• ITO Tetsuro

• TANAKA Toshiyuki

• RISWAN Soedarsono

抄録

Investigation of the chemical constituents of the roots of Garcinia dulcis resulted in the isolation of three new benzophenone-xanthone dimers named garciduols A-C (1-3) in addition to a new xanthone, 1, 3, 6-trihydroxy-7-methoxyxanthone (4). Five known xanthones [2, 5-dihydroxy-1-methoxy- (5), 1, 4, 5-trihydroxy- (6), 1, 3, 5-trihydroxy- (7), 1, 3, 6-trihydroxy-5-methoxy- (8) and 1, 3, 6-trihydroxy-8-isoprenyl-7-methoxyxanthone (9)] were also isolated from the roots. Their structures were determined by spectroscopic analysis including two dimensional NMR. The behaviors of chemical shifts caused by acetylation and the position of the methoxyl group in the dimers characterized by model synthetic benzophenones are also discussed.

収録刊行物

• ＣＨＥＭＩＣＡＬ　＆　ＰＨＡＲＭＡＣＥＵＴＩＣＡＬ　ＢＵＬＬＥＴＩＮ

  ＣＨＥＭＩＣＡＬ　＆　ＰＨＡＲＭＡＣＥＵＴＩＣＡＬ　ＢＵＬＬＥＴＩＮ 44 (9), 1744-1747, 1996

  公益社団法人 日本薬学会

キーワード

• Garcinia dulcis
• Guttiferae
• benzophenone-xanthone dimer
• xanthone
• garciduol A, B, C

詳細情報

• CRID: 1390282679135445760
• NII論文ID: 130003773595
• DOI: 10.1248/cpb.44.1744
• ISSN: 13475223
• ISSN: 00092363
• Web Site: http://www.jstage.jst.go.jp/article/cpb1958/44/9/44_9_1744/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可