[Chemical constituents from the flower of Juglans regia].
Maneno muhimu
Kikemikali
OBJECTIVE
To study the chemical constituents from the flower Juglans regia.
METHODS
All compounds were isolated and purified by normal column chromatograph and polyamide chromatograph, the chemical strucures were mainly elucidated by ESI-MS and NMR spectra.
RESULTS
Seven compounds were identified as follows: 4,5,8-trihydroxy-alpha-tetralone 5-O-beta-D-glucopyranoside(1),4,5-dihydroxy-alpha-tetralone4-O-beta-D-glucopyranoside(2), 5-hydroxy-4-methoxytetralone (3), 5-hydroxy-1, 4-naphthoquinone (4), rutin (5), vanillin (6), tetracosanoic acid 2,3-dihydroxypropyl ester (7).
CONCLUSIONS
All compounds are isolated from this plant for the first time.