Isolation and identification of chemical constituents from the whole plant of Hibiscus trionum L.

Objective To study the chemical constituents from the whole plant of Hibiscus trionum L.Methods The compounds were isolated by chromatography on silica gel,Sephadex LH-20 columns and the recrystallization methods.Chemical properties and NMR were employed for the structural identification.Results Eight compounds were isolated and identified as kaempferol(1),quercetin(2),rutin(3),kaempferol 3-O-(6-O-trans-p-coumaroyl)-β-D-glucopyranoside(4),6-methoxyl-7-hydroxycoumarin(5),6,7-dihydroxycoumarin(6),β-sitosterol(7)and daucosterol(8),respectively.Conclusions Compounds 5 and 6 are obtained from the Hibiscus genus for the first time and 18 are isolated from Hibiscus trionum L.for the first time.