(-)-4-methoxy-14-hydroxy-6-keto-N-methylmorphinan

2,2,2-trichloroethyl (4bR,8aS,9R)-4-methoxy-6-oxo-8a-(((2,2,2-trichloroethoxy)carbonyl)oxy)-6,7,8,8a,9,10-hexahydro-5H-9,4b-(epiminoethano)phenanthrene-11-carboxylate