(Pyrimidin-5-yl)boronic acid → N-(5-(3-(2-cyanopropan-2-yl)benzamido)-2-methylphenyl)-2-(pyrimidin-5-yl)thieno[2,3-b]pyrazine-6-carboxamide

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Preparation analogous to the synthesis of 25h by using pyrimidine-5-boronic acid (1.5 eq). Purified by HPLC to give the title compound N-(5-(3-(2-cyanopropan-2-yl)benzamido)-2-methylphenyl)-2-(pyrimidin-5-yl)thieno[2,3-b]pyrazine-6-carboxamide 25j (2 mg, 7%). NMR (400 MHz, DMSO-d6) 1.76 (s, 6H), 2.28 (s, 3H), 7.33 (d, J=8.6 Hz, 1H), 7.58-7.67 (m, 2H), 7.76 (d, J=7.8 Hz, 1H), 7.9 (d, J=1.9 Hz, 1H), 7.95 (d, J=8.2 Hz, 1H), 8.06 (s, 1H), 8.63 (br s, 1H), 9.37 (s, 1H), 9.51 (s, 1H), 9.61 (s, 2H), 10.38 (br s, 1H). (m/z)=534 (M+H)+.

Provenance & Evidence