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Five Stilbene Glucosides from Gnetum gnemonoides and Gnetum africanum
Author(s) -
Iliya Ibrahim,
Tanaka Toshiyuki,
Iinuma Munekazu,
Furusawa Miyuki,
Ali Zulfiqar,
Nakaya Kenichi,
Murata Jin,
Darnaedi Dedy
Publication year - 2002
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 - 10.1002/1522-2675(200208)85:8<2394::aid-hlca2394>3.0.co;2-6
Subject(s) - chemistry , liana , botany , stereochemistry , traditional medicine , medicine , biology
Five new stilbene glucosides, gnemonosides F, G, H, I, and J were isolated from the stem lianas of Gnetum gnemonoides Brongn and Gnetum africanum Welw along with nine known stilbenoids. The structures of the new compounds were elucidated as gnetin E 4a,4b,4c‐ O ‐ β ‐triglucopyranoside ( 2 ), gnetin E 4a,4c‐ O ‐ β ‐diglucopyranoside ( 3 ), gnetin C 4a,4b,11a‐ O ‐ β ‐triglucopyranoside ( 4 ), gnetin D 4a,4b‐ O ‐ β ‐diglucopyranoside ( 5 ), and gnetuhainin A 4a,4b‐ O ‐ β ‐diglucopyranoside ( 6 ) on the basis of spectroscopic evidence.