Among the triterpenoids isolated from the leaf wax of Canarina canarie
nsis, a new oleanane derivative, 3 beta-acetoxy-12 alpha,13 alpha-epox
yoleanane, has been identified. When deuterochloroform is used as NMR
solvent, the compound isomerizes to 3 beta-acetoxyoleanan-12-one. The
structural formulae of these compounds were established from one- and
two-dimensional NMR data.