(2S,4S,5R)-5-ethyl-2-((1R)-((4-((1R)-((2S,4S,5R)-5-ethylquinuclidin-2-yl)(6-(trityloxy)quinolin-4-yl)methoxy)phthalazin-1-yl)oxy)(6-methoxyquinolin-4-yl)methyl)quinuclidine 在
甲酸 作用下,
以
乙醚 为溶剂,
反应 0.25h,
以90%的产率得到4-((1R)-((2S,4S,5R)-5-ethylquinuclidin-2-yl)((4-((1R)-((2S,4S,5R)-5-ethylquinuclidin-2-yl)(6-methoxyquinolin-4-yl)methoxy)phthalazin-1-yl)oxy)methyl)quinolin-6-ol