Methyl Isocyanate → 4-hydroxy-N-methyl-4-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidine-1-carboxamide

Participants

Reaction Steps

4-[5-(3-Methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidin-4-ol (Example 46, 50 mg, 0.115 mmol) was dissolved in CH2Cl2 (1 mL). N,N-diisopropylethyl-amine (30 μL, 0.172 mmol) and methyl isocyanate (7 μL, 0.130 mmol) were added sequentially. The solution was stirred overnight at rt, then concentrated in vacuo on a Genevac. The resultant residue was dissolved in DMSO and purified via HPLC (30-64% CH3CN:H2O) to provide 4-hydroxy-N-methyl-4-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidine-1-carboxamide (36 mg, 0.073 mmol). MS ESI: [M+H]+ m/z 493.1. 1H NMR (600 MHz, DMSO-d6) δ 10.22 (s, 1H), 8.81 (d, J=5.2 Hz, 1H), 7.93 (s, 2H), 7.44 (s, 1H), 7.25 (d, J=5.1 Hz, 1H), 7.13 (s, 1H), 6.43 (d, J=4.8 Hz, 1H), 6.15 (s, 1H), 3.83-3.74 (m, 2H) (d, J=14.0 Hz, 2H), 3.07 (t, J=14.5 Hz, 2H), 2.53 (s, 3H), 2.29 (s, 3H), 1.98-1.82 (m, 2H), 1.65 (d, J=13.9 Hz, 2H). rhSYK activity=+++

Provenance & Evidence