4,5α-epoxy-7-hydroxy-3,6-dimethoxy-17-methyl-6α,14α-etheno-morphinane-7ξ-carboxylic acid hydrazide

(14R)-14-chloro-7,9-dimethoxy-3-methyl-1,2,3,4,7,7a-hexahydro-7,4a-ethano-4,12-methanobenzofuro[3,2-e]isoquinoline-14-carbonitrile