N-{3-[4-amino-4-(3,3-dimethylbutyl)-1-hydroxy-3-oxo-3,4-dihydronaphthalen-2-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}methanesulfonamide 、
2-oxo-4-(R)-phenyloxazolidin-3-carbonyl chloride 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以71%的产率得到2-oxo-4-(R)-phenyloxazolidine-3-carboxylic acid [1-(S)-(3,3-dimethylbutyl)-4-hydroxy-3-(7-methanesulfonylamino-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl)-2-oxo-1,2-dihydronaphthalen-1-yl]amide