17-cyclopropylmethyl-4,5α-epoxy-7α-((S)-1-hydroxy-1,2,2-trimethylpropyl)-6-methoxy-6,14-endo-ethanomorphinan-3-ol
2-(N-cyclopropylmethyl-4,5α-epoxy-3-hydroxy-6-methoxy-6,14-endo-ethanomorphinan-6α-yl)-3,3-dimethyl-2-butanol