Diisopropylethylamine → 1-(((6-((3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)methyl)cyclohexanol

Participants

Reaction Conditions

Reaction Steps

A 4:1 mixture of 6-((3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole and 6-((3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylsulfonyl)benzo[d]thiazole (80 mg) from Step 2 of Example 63 was dissolved in anhydrous DMA (2 mL), and (1-(aminomethyl)cyclohexyl)methanol (175 mg, 1.22 mmol) from Step 1 of this Example and DIEA (157 mg, 1.22 mmol) were added. The reaction vessel was sealed and the mixture was heated with stirring at 125° C. for 15 h. After cooling to rt, the mixture was purified directly by reverse-phase HPLC using a mixture of water (5% CH3CN, 0.05% HOAc) and CH3CN (0.05% HOAc) as the mobile phase and Varian Pursuit XRs Diphenyl column as the stationary phase to afford 1-(((6-((3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)methyl)cyclohexanol (22 mg) as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 8.60 (s, 1H), 8.38 (dd, J=1.1, 4.7 Hz, 1H), 8.09 (dd, J=1.3, 7.9 Hz, 1H), 7.99 (t, J=5.7 Hz, 1H), 7.68 (s, 1H), 7.20-7.33 (m, 3H), 5.49 (s, 2H), 3.33 (d, J=5.8 Hz, 2H), 3.21 (s, 1H), 1.21-1.49 (m, 12H). LCMS (ESI) m/z 408 (M+H)+.

Provenance & Evidence