N',N'-bis(2-hydroxyethyl)-N-[(3β,18β,20β)-3-(acetoxy)-11-oxo-30-norolean-12-en-20-yl]urea

N-[(3β,18β,20β)-3-(acetoxy)-11-oxo-30-norolean-12-en-20-yl]-N'-[(trifluoromethyl)sulfonyl]urea

(3β)-3-acetyloxy-11-oxoolean-12-en-30-amine