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From the hexane crude extract of the leaves of Kopsia Singapurensis, the family of Apocynaceae, a mixture of three known
triterpenes was identified. Three of them were pentacyclic triterpenes which consists of lupeol (lupane)1, β-amyrin (oleanane)2
and α-myrin (ursane)3. The components in the mixture were identified using spectroscopic methods and also comparison with
data from the literature.