Two new benzoic acid esters of triterpene alcohols [lup-20 (29)-en-28-oic a
cid 3 alpha, 7 beta -dibenzoate and 3 alpha -hydroxy-lup-20(29)-en-28-ic ac
id 7 beta -benzoate] were isolated from the stem bark of Picramnia teapensi
s Tul. The structures of these compounds were established on the basis of s
pectral analyses. Other known compounds, beta -sitosterol, estigmasterol, l
upeol and epilupeol, were identified in mixture by GC-MS. The triterpene es
ters have not shown in-vitro inhibitory effect on the growth of Leucoagaric
us gongylophorus (Fisher), referred also as Leucocoprinus gongylophorus (He
im), syn Rozites gongylophora (Moller), the symbiotic fungus cultivated by
the leaf-cutting ant Atta sexdens L.