methyl 4-[(1S)-1-[[(2R)-1-(1-methyl-2-phenoxyethyl)piperidinium-2-carbonyl]amino]ethyl]benzoate trifluoroacetate 在
水 、 sodium hydroxide 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
生成 4-[(1S)-1-[[(2R)-1-(1-methyl-2-phenoxyethyl)piperidinium-2-carbonyl]amino]ethyl]benzoic acid trifluoroacetate 、 4-[(1S)-1-[[(2R)-1-(1-methyl-2-phenoxyethyl)piperidinium-2-carbonyl]amino]ethyl]benzoic acid trifluoroacetate