New glucose esters from the fresh leaves of Jacaranda mimosaefolia

Abstract

From the fresh leaves of Jacaranda mimosaefolia were isolated Phytoquinoids 1-4 established as β-D-glucopyranose 2-benzeneacetate1,6-bis(1-hydroxy-4- oxo-2,5-cyclohexadiene-1-acetate), for which the name Jacaranoside is proposed; β-D-glucopyranose 2-(4-hydroxybenzeneacetate) 1,6-bis(1-hydroxy-4-oxo-2,5- cyclohexadiene-1-acetate), for which the name Jacarandol is proposed; β-D-glucopyranose 2-benzeneacetate 1-(1-hydroxy-4-oxo-2,5-cyclohexadiene-1- acetate) and β-D-glucopyranose 1,6-bis (1-hydroxy-4-oxo-2,5- cyclohexadiene-1-acetate) respectively.