3 resultados
One new sodium salt of an iridoid acid, sodium 6-O-methyldeacetylasperulosidate (1) and one new heterocyclic compound, 1,3,6-trimethylpyrano[2,3- d]imidazole-2,5(1H,3H)-dione (2) were isolated from Hedyotis lindleyana Hook. (Rubiaceae), together with seven known compounds, oleanolic acid (3),
OBJECTIVE
To study the chemical constituents of Hedyotis diffusa.
METHODS
Column chromatographic techniques were used for isolation and purification of chemical constituents of this plant and their structures were identified by spectroscopic analysis.
RESULTS
Five compounds were isolated and
Three new sodium salts of iridoid acids, deacetylasperulosidic acid sodium salt (1), teneoside D (2), and teneoside E (3) were isolated from the leaves of Hedyotis tenelliflora Blume (Rubiaceae), together with seven known iridoids, 6alpha-hydroxygeniposide (4), 6beta-hydroxygeniposide (5),