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Contribution à la phytochimie du genre Gentiana . XXV. Etude des composés flavoniques et xanthoniques dans les feuilles de Gentiana X marcailhouana R Y . Nouveaux cinnamoyl‐ C ‐glucosides flavoniques
Author(s) -
Luong Par Minh Duc,
Fombasso Pierre,
JacotGuillarmod André
Publication year - 1980
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19800630124
Subject(s) - isoorientin , gentiana , chemistry , isovitexin , phytochemistry , orientin , botany , stereochemistry , traditional medicine , flavonoid , vitexin , biology , biochemistry , organic chemistry , medicine , antioxidant
Phytochemistry of genus Gentiana XXV: Study of the flavonic and xanthonic compounds in leaves of Gentiana X marcailhouana R Y . New cinnamoyl‐ C ‐glucosyl‐flavones Nine flavonic compounds: isoorientin ( 1 ), isovitexin ( 2 ), isoorientin‐4′‐ O ‐β‐ D ‐glucoside ( 3 ), isovitexin‐4′‐ O ‐β‐ D ‐glucoside ( 4 ), luteolin‐7‐ O ‐β‐ D ‐glucoside ( 5 ), trans ‐cafeoyl‐2′′‐isoorientin ( 6 ), trans ‐feruloyl‐2′′‐isoorientin ( 7 ), trans‐p ‐coumaroyl‐2′′‐isoorientin ( 8 ), p‐O ‐β‐ D ‐glucosyl‐ trans ‐cafeoyl‐2′′‐isoorientin ( 9 ) and three xanthones: gentioside ( 10 ), isogentisine ( 11 ), mangiferin ( 12 ), have been identified from leaves of Gentiana X marcailhouana R Y . Compounds 8 and 9 were described for the first time. The cyclitol L ‐(+)‐bornesitol ( 13 ) has been also isolated.