New Triterpene Constituents, Foliasalacins A<sub>1</sub>&mdash;A<sub>4</sub>, B<sub>1</sub>&mdash;B<sub>3</sub>, and C, from the Leaves of <i>Salacia chinensis</i>
Four dammarane-type, three lupane-type, and an oleanane-type triterpenes named foliasalacins A(1) (1), A(2) (2), A(3) (3), A(4) (4), B(1) (5), B(2) (6), B(3) (7), and C (8) were isolated from the leaves of Salacia chinensis LINN. collected in Thailand. The structures of newtriterpene constituents (1-8) were characterized on the basis of chemical and physiochemical evidence.