tranexamic acid 、
1-((((2,5-Dioxopyrrolidin-1-yl)oxy)carbonyl)oxy)butyl acetate 以
MTBE acetone water 为溶剂,
以to yield the title compound 33 (174 mg, 24% yield) as a waxy white solid的产率得到trans-4-{[1-(acetoxy)butoxycarbonyl]aminomethyl}-cyclohexanecarboxylic acid