Ethyl 3-[[1-[3-[(4-carbamimidoylphenyl)methyl]-1-methyl-2-oxoquinoxalin-6-yl]cyclopropyl]-cyclopentylamino]-3-oxopropanoate 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以54%的产率得到N-{1-[3-(4-Carbamimidoyl-benzyl)-1-methyl-2-oxo-1,2-dihydro-quinoxalin-6-yl]-cyclopropyl}-N-cyclopentyl-malonamic acid