ethyl magnesium iodide   、                                                                                      4,5α-epoxy-19
anti-((
R)-1-hydroxy-1-methyl-pentyl)-3,6-dimethoxy-17-methyl-6β,14-ethano-morphina-7,16-dienium; perchlorate                                                                                                                                                                                              以
                                                                                         
乙醚                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
(R)-2-((16S)-4,5α-epoxy-16-ethyl-3,6-dimethoxy-17-methyl-6α,14α-etheno-morphinan-7α-yl)-hexan-2-ol