3-Cyanophenylboronic acid → 5-amino-N-(5-(4-(aminomethyl)piperidin-1-yl)-1-methyl-1H-pyrazol-4-yl)-2-(3-cyanophenyl)thiazole-4-carboxamide

Participants

Reaction Steps

Following Example 278, Suzuki coupling of tert-butyl 4-(5-(4-(butyloxycarbonylaminomethyl)piperidin-1-yl)-1-methyl-1H-pyrazol-4-ylcarbamoyl)-2-bromothiazol-5-ylcarbamate and 3-cyanophenyl boronic acid gave 250 as a pale brown solid (36 mg, 42% over two steps). 1H NMR (400 MHz, d6-DMSO) δ 9.09 (s, 1H), 8.42 (s, 1H), 8.11 (d, J=7.9 Hz, 1H), 7.86 (d, J=7.9 Hz, 1H), 7.68 (t, J=7.9 Hz, 1H), 7.56 (s, 2H), 7.33 (s, 1H), 3.66 (s, 3H), 3.16-2.99 (m, 4H), 2.47 (d, J=5.7 Hz, 2H), 1.82-1.73 (m, 4H), 1.30-1.17 (m, 3H). LCMS (ES+) m/z 437 (M+1)

Provenance & Evidence