11-ethyl-5-methyl-8-[2-(1-oxidoquinolin-1-ium-4-yl)oxyethyl]dipyrido[2,3-d:2',3'-h][1,4]diazepin-6-one

2-羟基-5-碘烟酸

2-氯-N-苯基烟酰胺

氨气