A novel triterpene, characterized as 6 alpha -hydroxybetulinic acid, was is
olated from the leaves and stems of Eugenia moraviana (Myrtaceae), known in
Brazil as Cambui, together with three known compounds, platanic acid, betu
linic acid and beta -sitosterol. Unequivocal H-1 and C-13 assignments of 6
alpha -hydroxybetulinic acid (3 beta, 6 alpha -dihydroxy-20(29)-lupen-28-oi
c acid) and platanic acid were undertaken by spectral analysis including NO
E and 2 D NMR experiments.