New amino-derivatives of 3-oxo-24-nor-allobetulin (3-semicarbazone, 1,2,3-thiadiazole, 3 beta-amine, methoxylactam) were synthesized. The structures of the 3E-oxime and 3E-methoxyoxime of 24-nor-allobetulin were confirmed by X-ray crystal structure analyses.