(2,3-difluoro-6-methoxyphenyl)boronic acid

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

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

Procedure: Following the procedure for Example 101 starting from tert-butyl N-[2-bromo-4-[[5-[(2S,5R,6R)-5-(tert-butoxycarbonylamino)-6-fluoro-oxepan-2-yl]-1-methyl-pyrazol-4-yl]carbamoyl]thiazol-5-yl]carbamate (Intermediate 88), and replacing 3,6-dihydro-2H-pyran-4-boronic acid pinacol ester with (2,3-difluoro-6-methoxyphenyl)boronic acid gave 277. 1H NMR (400 MHz, DMSO-d6) δ 9.42 (s, 1H), 7.84 (s, 1H), 7.47 (t, J=9.4 Hz, 1H), 7.39 (s, 2H), 7.01 (ddd, J=9.4, 4.0, 1.9 Hz, 1H), 5.02-4.76 (m, 2H), 4.18-3.93 (m, 2H), 3.92 (s, 3H), 3.72 (s, 3H), 2.23-2.13 (m, 1H), 1.90-1.60 (m, 4H). LCMS (ES+) m/z 497 (M+1).

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

Procedure: Following the procedure for Example 101 starting from tert-butyl N-[2-bromo-4-[[5-[(2S,5R,6R)-5-(tert-butoxycarbonylamino)-6-fluoro-oxepan-2-yl]-1-methyl-pyrazol-4-yl]carbamoyl]thiazol-5-yl]carbamate (Intermediate 88), and replacing 3,6-dihydro-2H-pyran-4-boronic acid pinacol ester with (2,3-difluoro-6-methoxyphenyl)boronic acid gave 277. 1H NMR (400 MHz, DMSO-d6) δ 9.42 (s, 1H), 7.84 (s, 1H), 7.47 (t, J=9.4 Hz, 1H), 7.39 (s, 2H), 7.01 (ddd, J=9.4, 4.0, 1.9 Hz, 1H), 5.02-4.76 (m, 2H), 4.18-3.93 (m, 2H), 3.92 (s, 3H), 3.72 (s, 3H), 2.23-2.13 (m, 1H), 1.90-1.60 (m, 4H). LCMS (ES+) m/z 497 (M+1).

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

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

Procedure: According to the similar manner described in Example 97-B (i) and (ii), the title compound (237 mg, 78%) has been obtained as a brown solid by the Suzuki coupling reaction followed by standard ester hydrolysis reaction using methyl 2-(2-methylpyrazolo[1,5-a]pyridin-3-yl)-4-{[(trifluoromethyl)sulfonyl]oxy}-1,3-thiazole-5-carboxylate (339 mg, 0.805 mmol) obtained in Example 13-B (ii) and 2,3-difluoro-6-methoxyphenylboronic acid (303 mg, 1.61 mmol). The pure title compound has been obtained by washing with EtOAc (10 mL).

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

Procedure: According to the similar manner described in Example 97-B (i) and (ii), the title compound (237 mg, 78%) has been obtained as a brown solid by the Suzuki coupling reaction followed by standard ester hydrolysis reaction using methyl 2-(2-methylpyrazolo[1,5-a]pyridin-3-yl)-4-{[(trifluoromethyl)sulfonyl]oxy}-1,3-thiazole-5-carboxylate (339 mg, 0.805 mmol) obtained in Example 13-B (ii) and 2,3-difluoro-6-methoxyphenylboronic acid (303 mg, 1.61 mmol). The pure title compound has been obtained by washing with EtOAc (10 mL).

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

Procedure: According to the similar manner described in Example 97-B (i) and (ii), the title compound (237 mg, 78%) has been obtained as a brown solid by the Suzuki coupling reaction followed by standard ester hydrolysis reaction using methyl 2-(2-methylpyrazolo[1,5-a]pyridin-3-yl)-4-{[(trifluoromethyl)sulfonyl]oxy}-1,3-thiazole-5-carboxylate (339 mg, 0.805 mmol) obtained in Example 13-B (ii) and 2,3-difluoro-6-methoxyphenylboronic acid (303 mg, 1.61 mmol). The pure title compound has been obtained by washing with EtOAc (10 mL).

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A flask containing 2-bromo-N-methoxy-N-methyl-isonicotinamide (Example 25, using method 2) (3.0 g, 12.2 mmol) 2,3-difluoro-6-methoxyphenylboronic acid (4.6 g, 24.4 mmol)) and 2M aqueous K3PO4 (15 mL, 30.6 mmol) in 1,4-dioxane (40 mL) was successively evacuated and flushed with nitrogen. Pd(PtBu3)2 (268 mg, 0.48 mmol) was then added and the mixture heated at 90° C. for 2 hours. The mixture was cooled, concentrated in vacuo and then partitioned between EtOAc and sat. aqueous NaHCO3 solution. The organic layer was washed with brine, dried (MgSO4) and concentrated in vacuo. Purification by SiO2 chromatography (eluting with 30-100% EtOAc/hexane) gave the title compound (0.856 g, 23%). MS(ESI) m/z 309 (M+H)+ was successively evacuated flushed with nitrogen The mixture was cooled concentrated in vacuo partitioned between EtOAc and sat. aqueous NaHCO3 solution The organic layer was washed with brine dried (MgSO4) concentrated in vacuo Purification by SiO2 chromatography (eluting with 30-100% EtOAc/hexane)

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

Procedure: According to the similar manner described in Example 97-B (i) and (ii), the title compound (237 mg, 78%) has been obtained as a brown solid by the Suzuki coupling reaction followed by standard ester hydrolysis reaction using methyl 2-(2-methylpyrazolo[1,5-a]pyridin-3-yl)-4-{[trifluoromethyl)sulfonyl]oxy}-1,3-thiazole-5-carboxylate (339 mg, 0.805 mmol) obtained in Example 13-B (ii) and 2,3-difluoro-6-methoxyphenylboronic acid (303 mg, 1.61 mmol). The pure title compound has been obtained by washing with EtOAc (10 mL).

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

Procedure: Following the procedure for Example 101 starting from tert-butyl N-[2-bromo-4-[[5-[(2S,5R,6R)-5-(tert-butoxycarbonylamino)-6-fluoro-oxepan-2-yl]-1-methyl-pyrazol-4-yl]carbamoyl]thiazol-5-yl]carbamate (Intermediate 88), and replacing 3,6-dihydro-2H-pyran-4-boronic acid pinacol ester with (2,3-difluoro-6-methoxyphenyl)boronic acid gave 277. 1H NMR (400 MHz, DMSO-d6) δ 9.42 (s, 1H), 7.84 (s, 1H), 7.47 (t, J=9.4 Hz, 1H), 7.39 (s, 2H), 7.01 (ddd, J=9.4, 4.0, 1.9 Hz, 1H), 5.02-4.76 (m, 2H), 4.18-3.93 (m, 2H), 3.92 (s, 3H), 3.72 (s, 3H), 2.23-2.13 (m, 1H), 1.90-1.60 (m, 4H). LCMS (ES+) m/z 497 (M+1).