[Study on hydrolysable tannin constituents of seed of Juglans regia II].
OBJECTIVE
To study hydrolysable tannin constituents of the seed of Juglans regia.


METHODS
The chemical constituents were isolated by Diaion HP-20, Toyopaerl HW-40 and MCI gel CHP-20P column chromatogramphy and identified by physicochemical identification and spectral data.


RESULTS
Six compounds obtained from the 70% ethanol extract were identified as 1, 2, 3, 4, 6-penta-O-galloyl-3-D-glucose (1), rugosin C (2), 1, 2, 3, 6-tetra-O-galloyl-3-D-glugose (3), tellimagrandin II (4), casuarictin (5), 1-degalloylrugosin F (6).


CONCLUSIONS
All compouds were isolated from the seeds of J. regia for the first time.
Jin
Zhe-xiong
ZX
School of Pharmaceutical, Harbin University of Commerce, Harbin 150076, China. jin-ai-pu@vip.163.com
Qu
Zhong-yuan
ZY
D001713:Biphenyl Compounds / Q000737:chemistry; D005707:Gallic Acid / Q000031:analogs & derivatives / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry; D047348:Hydrolyzable Tannins / Q000737:chemistry*; D031324:Juglans / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D012639:Seeds / Q000737:chemistry*
D001713:Biphenyl Compounds; D005960:Glucosides; D047348:Hydrolyzable Tannins; C473299:tellimagrandin II; C060474:glucogallin; D005707:Gallic Acid; C073064:casuarictin