New alpha-tetralonyl glucosides from the fruit of Juglans mandshurica.
Five new alpha-tetralonyl glucosides, juglanosides A-E (1-5) were isolated from the fresh rejuvenated fruit of Juglans mandshurica. Their structures were elucidated as (4S)-4-hydroxy-alpha-tetralone 4-O-beta-D-glucopyranoside (1), (4S)-4,5-dihydroxy-alpha-tetralone 4-O-beta-D-glucopyranoside (2), (4S)-4,6-dihydroxy-alpha-tetralone 4-O-beta-D-glucopyranoside (3), (4S)-4,5,8-trihydroxy-alpha-tetralone 4-O-beta-D-glucopyranoside (4), and (4S)-4,5,8-trihydroxy-alpha-tetralone 5-O-beta-D-glucopyranoside (5) on the basis of spectroscopic analysis and chemical evidence.
Liu
Lijuan
L
Faculty of Pharmaceutical Science, Toho University, Chiba, Japan.
Li
Wei
W
Koike
Kazuo
K
Zhang
Shujie
S
Nikaido
Tamotsu
T
D005638:Fruit; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification*; D031324:Juglans; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification
D005960:Glucosides; D010936:Plant Extracts