{6-[(5-Carbamimidoyl-thiophene-2-carbonyl)-amino]-1-oxo-1,2,3,4-tetrahydro-naphthalen-2-yl}-acetic acid ethyl ester 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
生成 (6-{[5-(tert-Butoxycarbonylamino-imino-methyl)-thiophene-2-carbonyl]-amino}-1-oxo-1,2,3,4-tetrahydro-naphthalen-2-yl)-acetic acid