Cyclohexanesulfonyl chloride → N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)cyclohexanesulfonamide

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According to the general procedure B, 5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamine was reacted with cyclohexanesulfonyl chloride to obtain the desired product. 1H NMR (300 MHz, CDCl3): δ 7.43 (dd, J=1.5 & 10.2 Hz, 1H), 7.37 (ddd, J=2.4, 4.8 & 9.6 Hz, 1H), 7.27 (m, 1H), 7.11 (dd, J=9.3 & 18.0 Hz, 1H), 6.64 (br s, 1H), 6.18 (dt, J=1.5, 9.0 & 17.4 Hz, 1H), 5.63 (br s, 1H), 2.95 (triplet of triplet, 2.10-1.16 (m, 10H); n/z=509 [M−1]−.

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