Phytochemical studies on Galanthus nivalis of Bulgarian origin resulted in the isolation of five compounds: 11- O -(3′-hydroxybutanoyl)hamayne, 3,11- O -(3′,3″-dihydroxybutanoyl)hamayne, 3- O -(2″-butenoyl)-11- O -(3′-hydroxybutanoyl)hamayne, 3,11,3″- O -(3′,3″,3‴-trihydroxybutanoyl)hamayne, and 2- O -(3′-acetoxybutanoyl)lycorine, together with five known alkaloids: ungeremine, lycorine, tazettine, hamayne, and ismine. Their structures were determined by 1 H and 13 C NMR spectroscopy and two-dimensional 1 H– 1 H and 1 H– 13 C chemical shift correlation experiments.
