巴比妥酸 、
6-((2R,6R)-2,6-dimethylmorpholino)-7-fluoro-3-((4R,5R)-4-(fluoromethyl)-5-methyl-2-oxooxazolidin-3-yl)benzo[d]isoxazole-5-carbaldehyde 以
异丙醇 为溶剂,
反应 2.0h,
以81%的产率得到(2R,4S,4aS)-11-fluoro-8-((4R,5R)-4-(fluoromethyl)-5-methyl-2-oxooxazolidin-3-yl)-2,4-dimethyl-2,4,4a,6-tetrahydro-1H,1'H-spiro[isoxazolo[4,5-g][1,4]oxazino[4,3-a]quinoline-5,5'-pyrimidine]-2',4',6'(3'H)-trione