N-benzyl-N-methyl-(S)-leucyl-(R)-lactyl-N-methyl-(S)-leucyl-(R)-3-phenyllactyl-N-methyl-(S)-leucyl-(R)-lactyl-N-methyl-(S)-leucyl-(R)-3-phenyllactic acid hydrochloride 在
DOWEX 1-X
4 ion exchanger 作用下,
以
甲醇 、
水 为溶剂,
反应 3.0h,
生成
N-benzyl-N-methyl-(S)-leucyl-(R)-lactyl-N-methyl-(S)-leucyl-(R)-3-phenyllactyl-N-methyl-(S)-leucyl-(R)-lactyl-N-methyl-(S)-leucyl-(R)-3-phenyllactic acid