Boronic acid, B-(2-(((1,1-dimethylethyl)amino)sulfonyl)phenyl)- → HCID 90314190, compound

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The title compound was prepared using analogous conditions to those described in Example 6 utilizing 6-amino-3-(4-bromo-2-fluorophenyl)pyrazine-2-carbonitrile and (2-(N-(tert-butyl)sulfamoyl)phenyl)boronic acid. MS (ESI): mass calcd. for O21H20FN5O2S, 425.13; m/z found, 426.1 [M+H]+. 1H NMR (600 MHz, CDCl3) δ 8.25 (s, 1H), 8.19 (dd, J=8.0, 1.4, 1H), 7.64-7.56 (m, 2H), 7.54-7.49 (m, 1H), 7.47 (dd, J=7.9, 1.7, 1H), 7.40-7.33 (m, 2H), 1.04 (s, 9H).

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