3-methylazetidin-3-ol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:140.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 5-Bromo-6-chloro-N-(4-(trifluoromethoxy)phenyl)nicotinamide (Stage 12.2, 1.38 g, 3.5 mmol) and 3-methyl-azetidin-3-ol (HCl salt, 519 mg, 4.2 mmol) were dissolved in iPrOH (3.5 mL). DIPEA (1.4 mL, 8 mmol) was added and the RM mixture was heated at 140° C. for 4 h in a pressure safe vial. After cooling at RT, the RM was dissolved in EtOAc, washed with 0.5 M. HCl and brine. The organic phase was dried over Na2SO4 and the mixture was evaporated to dryness under reduced pressure. The crude product was purified by flash chromatography (RediSep® Silica gel column, n-hexane/EtOAc, from 50 to 100% EtOAc) to afford the title compound as a white crystalline solid. HPLC (Condition 4) tR=5.59 min, UPLC-MS (Condition 3) tR=0.92 min, m/z=448.1 [M+H]+. After cooling at RT washed with 0.5 M The organic phase was dried over Na2SO4 the mixture was evaporated to dryness under reduced pressure The crude product was purified by flash chromatography (RediSep® Silica gel column, n-hexane/EtOAc, from 50 to 100% EtOAc)

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

Procedure: The title compound was prepared in an analogous fashion to that described in Example 33 using 6-chloro-N-(4-(chlorodifluoromethoxy)phenyl)-5-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)nicotinamide (Stage 48.2) and 3-methylazetidin-3-ol to afford a white powder. HPLC (Condition 4) tR=4.8 min, UPLC-MS (Condition 3) tR=0.94 min, m/z=450 [M+H]+; 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.30 (s, 3H) 3.61 (s, 4H) 5.41 (s, 1H) 6.41 (br. s, 1H) 7.31 (d, J=8.60 Hz, 2H) 7.74-7.90 (m, 3H) 7.99-8.09 (m, 1H) 8.70 (br. s, 1H) 10.21 (s, 1H) 12.90-13.18 (m, 1H). to afford a white powder

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

Procedure: The title compound was prepared in an analogous fashion to that described in Example 33 using 6-chloro-5-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)-N-(4-(trifluoromethoxy)phenyl)nicotinamide (Stage 32.1) and 3-methylazetidin-3-ol to afford an off-white powder. HPLC (Condition 4) tR=4.52 min, UPLC-MS (Condition 3) tR=0.88 min, m/z=434.2 [M+H]+; 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.30 (s, 3H) 3.61 (s, 4H) 5.40 (s, 1H) 6.41 (s, 1H) 7.32 (d, J=8.60 Hz, 2H) 7.74-7.89 (m, 3H) 8.04 (d, J=2.35 Hz, 1H) 8.70 (s, 1H) 10.20 (s, 1H) 12.90-13.15 (m, 1H). to afford an off-white powder

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

Procedure: The title compound was prepared in an analogous fashion to that described in Example 33 using 6-chloro-5-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)-N-(4-(trifluoromethoxy)phenyl)nicotinamide (Stage 32.1) and 3-methylazetidin-3-ol to afford an off-white powder. HPLC (Condition 4) tR=4.52 min, UPLC-MS (Condition 3) tR=0.88 min, m/z=434.2 [M+H]+; 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.30 (s, 3H) 3.61 (s, 4H) 5.40 (s, 1H) 6.41 (s, 1H) 7.32 (d, J=8.60 Hz, 2H) 7.74-7.89 (m, 3H) 8.04 (d, J=2.35 Hz, 1H) 8.70 (s, 1H) 10.20 (s, 1H) 12.90-13.15 (m, 1H). to afford an off-white powder

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 52 (0.5 g, 2.2 mmol) in MeOH (25 mL) was added Ambersep-900 OH resin (50 g) filtered to separate the resin and concentrated to obtain the free base. The free base was dissolved in MeOH-THF (10 mL, 1:1) and cooled to 0° C. 3-methyl-azetidin-3-ol (0.53 g, 4.3 mmol) and triethylamine (0.7 mL, 4.3 mmol) were added and the reaction mixture warmed to rt and stirred for 16 h. The reaction mixture was concentrated and the crude compound was purified by silica gel column chromatography (100-200 mesh), eluting with 3% MeOH/CHCl3 to give the desired compound (0.35 g, 48%, over two steps) as a pale yellow liquid. Rf: 0.3 (10% MeOH/DCM); (m/z): 224 [MH]+; 1H NMR (400 MHz, DMSO-d6): δ 9.27 (1H, d, J=2.4 Hz), 8.56 (1H, dd, J=8.8, 2.8 Hz), 7.64 (1H, d, J=8.8 Hz), 5.22 (1H, s), 3.85 (2H, s), 3.36-3.26 (2H, m), 3.02-3.00 (2H, m), 1.38 (3H, s). filtered to separate the resin concentrated to obtain the free base the reaction mixture warmed to rt The reaction mixture was concentrated the crude compound was purified by silica gel column chromatography (100-200 mesh) eluting with 3% MeOH/CHCl3

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Under nitrogen atmosphere, 2-chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-cabonitrile (I-130) (216 mg, 0.753 mmol) was dissolved in N,N-dimethylsulfoamide (10 ml), then N,N-diisopropylethylamine (584 μl, 3.35 mmol) and 3-hydroxy-3-methylazetidine (132 mg, 1.51 mmol) dissolved in N,N-dimethylsulfoamide (5 ml) were added, followed by stirring under heat at 100° C. for 20 hours. After cooling, diluting with chloroform and washing with water, the organic layer was dried over anhydrous magnesium, sulfate, then the solvent was evaporated away under reduced pressure. The resulting residue was subjected to preparative silica gel column chromatography. The eluate with chloroform/methanol (10:1, v/v) gave the entitled compound (234 mg, 92%) as a white solid. were added After cooling washing with water the organic layer was dried over anhydrous magnesium, sulfate the solvent was evaporated away under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir: