tranexamic acid 、
1-({[(2,5-Dioxopyrrolidin-1-yl)oxy]carbonyl}oxy)butyl butanoate 以
MTBE acetone water 为溶剂,
以to yield the title compound 35 (210 mg, 27% yield) as a white powder的产率得到trans-4-{[1-(butanoyloxy)butoxycarbonyl]aminomethyl}-cyclohexanecarboxylic acid