[Chemical Constituents of Euphorbia lunulata].
Ключевые слова
абстрактный
OBJECTIVE
To investigate the chemical constituents in the ethanol extract from the whole plant of Euphorbia lunulata.
METHODS
The whole plant of Euphorbia lunulata was extracted by 95% ethanol, then partitioned by system solvents with different polarity. The ethyl acetate and n-butyl alcohol extracts were separated on silica gel, Sephadex LH-20,and MCI columns. The isolated compounds were determined by detailed analysis of their spectral data.
RESULTS
Twelve compounds were isolated and identified from the ethyl acetate and n-butyl alcohol extracts of Euphorbia lunulata and the structures were identified as 7β-methoxy-stigmast-5-ene-3β-ol (1), 7β-methoxy-stigmast-5-ene-3β,22β-diol(2), asperglaucide(3), moscatin (4), p-hydroxybenzoic acid (5),3-methoxy-4-hydroxy benzoic acid(6), erigeside C(7),5,7,4'-trihydroxy flavanone(8), kaempferol(9), quercetin(10), corosolic acid(11) and acacetin (12).
CONCLUSIONS
All compounds except for 9 and 10 are reported from this plant for the first time.
