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(2012/04/17)ethyl (2R)-4-(3-fluoro-2-oxo-4-phenylpyridin-1(2H)-yl)-2-methyl-2-(methylsulfonyl)butanoate
ethyl (2R)-4-(3-fluoro-4-iodo-2-oxopyridin-1(2H)-yl)-2-methyl-2-(methylsulfonyl)butanoate
3-fluoro-4-iodopyridin-2(1H)-one
2,3-difluoro-4-iodopyridine
(2R)-ethyl 4-bromo-2-methyl-2-(methylsulfonyl)butanoate