(3S,4aR,5S,6S,11R,12R,12aR)-5-acetoxy-6,11,12-trihydroxy-9,12a,13,13-tetramethyl-4-methylene-8-oxo-1,2,3,4,4a,5,6,7,8,11,12,12a-dodecahydro-6,10-methanobenzo[10]annulen-3-yl 3-(dimethylamino)-3-phenylpropanoate