Boc-tranexamic acid 、
氯甲酸乙酯 、 N-[4-(t-butyloxycarbonyl)aminomethylbenzoyl]-4-benzyloxy-L-phenylalanine 3,4-dimethylcyclohexylamide 在
ice 、
氯仿 作用下,
以
三乙胺 为溶剂,
反应 3.5h,
以0.28 g of N-[trans-4-(t-butyloxycarbonyl)aminomethylcyclohexylcarbonyl]-4-benzyloxy-L-phenylalanine 4-trifluoromethylanilide (IV) was obtained的产率得到N-[4-(t-butyloxycarbonyl)aminomethylbenzoyl]-4-benzyloxy-L-phenylalanine cyclohexylamide