5-(4-((1R,1'R,3r,3,R,5S,5'S)-[3,9'-bi(9'-azabicyclo[3.3.1]nonan)]-3,-yl)-3-oxo-3,4-dihydroquinoxalin-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide 在
水 、 sodium hydroxide 作用下,
以
乙醇 为溶剂,
以77%的产率得到5-(4-((1R,1'R,3r,3
,R,5S,5'S)-[3,9'-bi(9'-azabicyclo[3.3.1]nonan)]-3
,-yl)-3-oxo-3,4-dihydroquinoxalin-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid