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(2007/10/02)(R)-N-[4-{2-nitropyridyl}-6-sulphonyl-2,3,dichlorophenyl]-2-hydroxy-2-methyl-3,3,3-trifluoropropanamide
(R)-N-[4-{2-aminopyrid-6-ylsulphonyl}-2,3-dichlorophenyl]-2-hydroxy-2-methyl-3,3,3-trifluoropropanamide
6-nitro-2-picrylaminopyridine
2-nitro-6-chloro-pyridine