(R)-tert-butyl 3-(3-(7-methoxy-6-(2-methoxyethoxy)-2-oxo-1,2-dihydroquinoline-3-carboxamido)-4-methylbenzamido)-3-phenylpropylcarbamate 、
三氟乙酸 以
二氯甲烷 为溶剂,
反应 2.0h,
以Preparative HPLC provided 7-methoxy-6-(2-methoxy-ethoxy)-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid [5-((R)-3-amino-1-phenyl-propylcarbamoyl)-2-methyl-phenyl]-amide trifluoro-acetic acid salt as a light yellow solid的产率得到7-methoxy-6-(2-methoxy-ethoxy)-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid [5-((R)-3-amino-1-phenyl-propylcarbamoyl)-2-methyl-phenyl]-amide trifluoro-acetic acid salt