(1S,2R)-2-aminocyclohexan-1-ol;hydrochloride

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2-chloro-4-fluoro-3-methyl-benzonitrile (500 mg, 2.95 mmol), diisopropylethylamine (1.29 mL, 7.37 mmol), and (1S,2R)-2-aminocyclohexanol hydrochloride (670 mg, 4.42 mmol, Acros®) is microwaved using a CEM® microwave at 190° C. for 2 h and 180° C. for 4 h. The mixture is diluted with dichloromethane and washed with 1 N HCl. The aqueous layer is extracted again with dichloromethane. The combined organic phases are dried over sodium sulfate, filtered, and concentrated in vacuo. The resulting residue is purified using radial chromatography, eluting with 2% methanol/dichloromethane. The isolated product is recrystallized with ether and hexane to yield the title compound as a white solid (231 mg, 29%). LC-ES/MS m/z 265.0 (M+1). is microwaved at 190° C. for 2 h washed with 1 N HCl The aqueous layer is extracted again with dichloromethane The combined organic phases are dried over sodium sulfate filtered concentrated in vacuo The resulting residue is purified eluting with 2% methanol/dichloromethane The isolated product is recrystallized with ether and hexane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2-chloro-4-fluoro-3-methyl-benzonitrile (500 mg, 2.95 mmol), diisopropylethylamine (1.29 mL, 7.37 mmol), and (1S,2R)-2-aminocyclohexanol hydrochloride (670 mg, 4.42 mmol, Acros®) is microwaved using a CEM® microwave at 190° C. for 2 h and 180° C. for 4 h. The mixture is diluted with dichloromethane and washed with 1 N HCl. The aqueous layer is extracted again with dichloromethane. The combined organic phases are dried over sodium sulfate, filtered, and concentrated in vacuo. The resulting residue is purified using radial chromatography, eluting with 2% methanol/dichloromethane. The isolated product is recrystallized with ether and hexane to yield the title compound as a white solid (231 mg, 29%). LC-ES/MS m/z 265.0 (M+1). is microwaved at 190° C. for 2 h washed with 1 N HCl The aqueous layer is extracted again with dichloromethane The combined organic phases are dried over sodium sulfate filtered concentrated in vacuo The resulting residue is purified eluting with 2% methanol/dichloromethane The isolated product is recrystallized with ether and hexane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2-chloro-4-fluoro-3-methyl-benzonitrile (500 mg, 2.95 mmol), diisopropylethylamine (1.29 mL, 7.37 mmol), and (1S,2R)-2-aminocyclohexanol hydrochloride (670 mg, 4.42 mmol, Acros®) is microwaved using a CEM® microwave at 190° C. for 2 h and 180° C. for 4 h. The mixture is diluted with dichloromethane and washed with 1 N HCl. The aqueous layer is extracted again with dichloromethane. The combined organic phases are dried over sodium sulfate, filtered, and concentrated in vacuo. The resulting residue is purified using radial chromatography, eluting with 2% methanol/dichloromethane. The isolated product is recrystallized with ether and hexane to yield the title compound as a white solid (231 mg, 29%). LC-ES/MS m/z 265.0 (M+1). is microwaved at 190° C. for 2 h washed with 1 N HCl The aqueous layer is extracted again with dichloromethane The combined organic phases are dried over sodium sulfate filtered concentrated in vacuo The resulting residue is purified eluting with 2% methanol/dichloromethane The isolated product is recrystallized with ether and hexane

Conditions: temp:110.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a suspension of 6-((6-fluoro-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole (1.0 g, 3.0 mmol) and (1S,2R)-2-aminocyclohexanol hydrochloride (916 mg, 6 mmol) in anhydrous DMA (12 mL) was added DIEA (1.6 mL, 9.0 mmol). The mixture was heated in a sealed tube at 110° C. for 12 h. The mixture was cooled to rt and additional (1S,2R)-2-aminocyclohexanol hydrochloride (458 mg, 3 mmol) and DIEA (530 μL, 3 mmol) were added. The mixture was further heated in a sealed tube at 120° C. for 12 h. The mixture was cooled to rt and partitioned between EtOAc (200 mL) and 0.5 M aq K2CO3 (100 mL). The organic layer was separated, washed with brine (100 mL), dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography, eluting with 5% MeOH in CH2Cl2, then by reverse-phase preparative HPLC using a mixture of water (5% CH3CN, 0.05% HCOOH) and CH3CN (0.05% HCOOH) as the mobile phase and Varian Pursuit XRs C18 column as the stationary phase to afford (1S,2R)-2-((6-((6-fluoro-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol (89 mg, 7%) as a white powder. 1H NMR (500 MHz, DMSO-d6) δ 8.67 (s, 1H), 8.41 (s, 1H), 8.06 (dd, J=2.5, 9.5 Hz, 1H), 7.85 (d, J=7.5 Hz, 1H), 7.66 (s, 1H), 7.29 (d, J=8.0 Hz, 1H), 7.21 (dd, J=1.3, 8.3 Hz, 1H), 5.47 (s, 2H), 4.67 (m, 1H), 3.90 (m, 1H), 3.84 (m, 1H), 1.64-1.74 (m, 2H), 1.43-1.63 (m, 4H), 1.25-1.34 (m, 2H); LCMS (ESI) m/z 398 (M+H)+. The mixture was cooled to rt The mixture was further heated in a sealed tube at 120° C. for 12 h The mixture was cooled to rt partitioned between EtOAc (200 mL) and 0.5 M aq K2CO3 (100 mL) The organic layer was separated washed with brine (100 mL) dried over Na2SO4 filtered concentrated under reduced pressure The residue was purified by silica gel flash chromatography eluting with 5% MeOH in CH2Cl2 a mixture of water (5% CH3CN, 0.05% HCOOH) and CH3CN (0.05% HCOOH) as the mobile phase and Varian Pursuit XRs C18 column as the stationary phase

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2-chloro-4-fluoro-3-methyl-benzonitrile (500 mg, 2.95 mmol), diisopropylethylamine (1.29 mL, 7.37 mmol), and (1S,2R)-2-aminocyclohexanol hydrochloride (670 mg, 4.42 mmol, Acros®) is microwaved using a CEM® microwave at 190° C. for 2 h and 180° C. for 4 h. The mixture is diluted with dichloromethane and washed with 1 N HCl. The aqueous layer is extracted again with dichloromethane. The combined organic phases are dried over sodium sulfate, filtered, and concentrated in vacuo. The resulting residue is purified using radial chromatography, eluting with 2% methanol/dichloromethane. The isolated product is recrystallized with ether and hexane to yield the title compound as a white solid (231 mg, 29%). LC-ES/MS m/z 265.0 (M+1). is microwaved at 190° C. for 2 h washed with 1 N HCl The aqueous layer is extracted again with dichloromethane The combined organic phases are dried over sodium sulfate filtered concentrated in vacuo The resulting residue is purified eluting with 2% methanol/dichloromethane The isolated product is recrystallized with ether and hexane