HUANG Bin, JIN Chen, HE Yu-qin, et al. Chemical Constituents of Flower[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(1): 56-59.
DOI:
HUANG Bin, JIN Chen, HE Yu-qin, et al. Chemical Constituents of Flower[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(1): 56-59. DOI: 10.13422/j.cnki.syfjx.2018010056.
Objective:To investigate the constituents of Punica granatum flower. Method:The P. granatum flowers were extracted with 60% ethyl alcohol and condensed to a small amount of volume. The extraction was carried out by petroleum ether
dichloromethane
ethyl acetate and n-butyl alcohol in turn. The compounds from ethyl acetate extract were isolated and purified by silica gel
semi-preparative HPLC
Sephadex LH-20 and recrystallization methods
while their structures were identified on the basis of spectral analysis and comparison of their spectral data with those in the literature. Result:Twelve compounds were isolated and identified respectively as gallic acid (1)
ethyl gallate (2)
luteolin (3)
8-O-methylretusin (4)
7-hydroxy-4'
6-dimethoxyisoflavone (5)
formononetin (6)
tricetin (7)
taraxerone (8)
oleanolic acid (9)
ursolic acid (10)
D-dulcitol (11)
and daucosterol (12). Conclusion:The compounds 4-8 as well as 11 were isolated for the first time from P. granatum flower (ie. Uighur medicine Gulina)
and compounds 5
6 and 8 were isolated for the first time from this genus.