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).
Conclusion: All compounds except for 9 and 10 are reported from this plant for the first time.
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