Two new saponins, 2 alpha, 3 alpha,19 alpha,23-tetrahydroxyolean-12-en-28-O
-beta-D-galactoside, and sitesterol alpha(1 -->3) diglucoside, were isolate
d from the stem barks of Pteleopsis hylodendron along with a known triterpe
noid, 2 alpha,3 beta,21 beta,23-tetrahydroxyolean-12-en-28-oic acid, which
was isolated for the first time from this plant. The structures of these co
mpounds were elucidated with the help of spectroscopic studies. (C) 1999 El
sevier Science Ltd. All rights reserved.