Glycosylation of triterpenoids of the dammarane series. II. 12,25-di-O- and 3,12,25-tri-o-glucopyranosides of 20(S), 24 (R)-epoxydammarane-3α, 12β, 25-triol and its 3-epimer
Glycosylation of triterpenoids of the dammarane series. II. 12,25-di-O- and 3,12,25-tri-o-glucopyranosides of 20(S), 24 (R)-epoxydammarane-3α, 12β, 25-triol and its 3-epimer