[Studies on chemical constituents of the extract of Lonicera japonica].
OBJECTIVE
To isolate and elucidate the structure of the constituents of the extract of Lonicera japonica.


METHODS
The compounds were isolated and repeatedly purified on TLC, silica gel column chromatography, and gel column chromatography. The structures were elucidated by physico-chemical properties, MS and NMR.


RESULTS
Seven compounds were obtained and elucidated as luteolin (I), luteoloside (II), quercetin (III), quercetin-3-0-beta-D-glucoside (IV), quercetin-7-0-beta-D-glucoside (V), rutin (VI), chlorogenic acid (VII).


CONCLUSIONS
Compound V is isolated from this genus for the first time.
Shenyang Pharmaceutical University, Shenyang 110016, China. qiuzhu@163.com
Qiu-Zhu
QZ
Chen
Rui-Chao
RC
Lin
Gang-Li
GL
Wang
Fa-Mei
FM
Li
D002726:Chlorogenic Acid / Q000737:chemistry / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D031239:Lonicera / Q000737:chemistry*; D047311:Luteolin / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification*; D012431:Rutin / Q000737:chemistry / Q000302:isolation & purification
D005960:Glucosides; D002726:Chlorogenic Acid; D012431:Rutin; D011794:Quercetin; D047311:Luteolin