63903-53-7 (2S,6S,11R)-6-ethyl-3,11-dimethyl-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocine-8,11-diol hydrobromide 63903-58-2 (2S,6R,11S)-3,6,11-trimethyl-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocine hydrobromide 63903-66-2 (2S,6R,11R)-3,6,11-trimethyl-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocin-8-yl acetate hydrochloride 63903-67-3 (2S,6S,11R)-8-methoxy-3,6,11-trimethyl-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocin-11-ol hydrobromide