8-((R)-2-{3-[3-(4-chloro-phenyl)-5-methyl-[1,2,4]triazol-1-yl]-1,1-dimethyl-propylamino}-1-hydroxy-ethyl)-6-hydroxy-4H-benzo[1,4]oxazin-3-one 、
顺丁烯二酸 以
异丙醇 为溶剂,
反应 1.0h,
以74%的产率得到8-((R)-2-{3-[3-(4-chloro-phenyl)-5-methyl-[1,2,4]triazol-1-yl]-1,1-dimethyl-propylamino}-1-hydroxy-ethyl)-6-hydroxy-4H-benzo[1,4]oxazin-3-one maleate