[Study on Chemical Constituents of Lonicera similis].
Palabras clave
Abstracto
OBJECTIVE
To study the chemical constituents of flower buds of Lonicera similis.
METHODS
The compounds were isolated and repeatedly purified by macroperous resin, silica gel column, gel column, preparation of TLC, and RP C18, chromatography. Their structures were elucidated by physicochemical properties, MS and NMR.
RESULTS
Seven compounds were isolated and identified as 4-hydroxy-γ,3,5-trimethoxybenzenepropanol (1), ursolic acid(2), E-ferulic acid(3), caffeic acid ethyl ester(4), dihydrosyringenin (5), rutin(6) and 6-Daucosterin (7).
CONCLUSIONS
Compounds 1 and 5 are isolated from this genus for the first time, and compounds 2 - 4 are isolated from this plant for the first time.