Dihydrothebaine-φ, dihydrothebainone-Δ5-enol methylether and dihydrothebainone were converted to the respective 4-phenylethers by Ullmann reaction in good yields. These phenylether derivatives were reduced to 4-desoxy compounds by sodium-liquid ammonia reduction.
                                    Dihydrothebaine-φ,dihydrothebainone-Δ 5烯醇
甲醚和dihydrothebainone转化为通过以良好的收率乌尔曼反应相应的4 phenylethers。这些苯醚衍
生物通过
钠-液
氨还原被还原成4-脱氧化合物。