2,6-二氟-4-甲氧基溴化苄

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of KCN (0.88 g, 13 mmol) dissolved in water (2 mL) was added dropwise to a water-bath-cooled solution of 2,6-difluoro-4-methoxybenzyl bromide (2.50 g, 10.5 mmol) in N,N-dimethylformamide (10 mL). The reaction mixture was stirred for 20 min. Water was added (20 mL) and then the reaction mixture was poured into saturated aqueous NaHCO3 solution (20 mL) and extracted with ether (50 mL). The organic phase was washed with water (5×25 mL), dried over MgSO4, and concentrated to give an oil, which crystallized on standing to provide the title compound as a white solid (1.9 g). extracted with ether (50 mL) The organic phase was washed with water (5×25 mL) dried over MgSO4 concentrated to give an oil, which crystallized

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of KCN (0.88 g, 13 mmol) dissolved in water (2 mL) was added dropwise to a water-bath-cooled solution of 2,6-difluoro-4-methoxybenzyl bromide (2.50 g, 10.5 mmol) in N,N-dimethylformamide (10 mL). The reaction mixture was stirred for 20 min. Water was added (20 mL) and then the reaction mixture was poured into saturated aqueous NaHCO3 solution (20 mL) and extracted with ether (50 mL). The organic phase was washed with water (5×25 mL), dried over MgSO4, and concentrated to give an oil, which crystallized on standing to provide the title compound as a white solid (1.9 g). extracted with ether (50 mL) The organic phase was washed with water (5×25 mL) dried over MgSO4 concentrated to give an oil, which crystallized

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (85 mg, 0.18 mmol) was prepared from 2-(4,6-dimethylpyridin-2-yl)-2H-pyrido[2,3-e][1,2,4]thiadiazin-3(4H)-one 1,1-dioxide (IntF2) (110 mg, 0.36 mmol), 2,6-difluoro-4-methoxybenzyl bromide (103 mg, 0.43 mmol) and K2CO3 (75 mg, 0.54 mmol) in DMF (3 mL) using the methods of (115).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (182 mg, 0.40 mmol) was prepared from 2-(5,6-dimethylpyridin-2-yl)-2H-pyrido[2,3-e][1,2,4]thiadiazin-3(4H)-one 1,1-dioxide (IntF1) (181 mg, 0.60 mmol), 2,6-difluoro-4-methoxybenzyl bromide (169 mg, 0.71 mmol) and K2CO3 (123 mg, 0.89 mmol) in DMF (3 mL) using the methods of (115).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (120 mg, 0.24 mmol) was prepared in two steps from tert-butyl[5-(1,1-dioxido-3-oxo-3,4-dihydro-2H-1,2,4-benzothiadiazin-2-yl)-2-methoxypyridin-3-yl]methylcarbamate (IntA35) (130 mg, 0.3 mmol), 2,6-difluoro-4-methoxybenzyl bromide (85 mg, 0.36 mmol) and K2CO3 (124 mg, 0.9 mmol) in DMF (1.5 mL); followed by TFA (2 mL) in DCM (3 mL) at rt using the methods of (179).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound was prepared from 2-(4,6-dimethoxypyridin-2-yl)-2H-1,2,4-benzothiadiazin-3(4H)-one 1,1-dioxide (IntA33) (101 mg, 0.3 mmol), 2,6-difluoro-4-methoxybenzyl bromide (85 mg, 0.36 mmol) and K2CO3 (124 mg, 0.9 mmol) in DMF (1.5 mL) using the methods of (115). After trituration with Et2O further purification by preparative HPLC (method C) yielded the title compound (7 mg, 0.01 mmol). After trituration with Et2O further purification by preparative HPLC (method C)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (301 mg, 0.51 mmol) was prepared from tert-butyl[6-(1,1-dioxido-3-oxo-3,4-dihydro-2H-1,2,4-benzothiadiazin-2-yl)-3-methoxypyridin-2-yl]methylcarbamate (IntA31) (343 mg, 0.79 mmol), 2,6-difluoro-4-methoxybenzyl bromide (225 mg, 0.95 mmol) and K2CO3 (164 mg, 1.19 mmol) in DMF (4 mL) at rt using the methods of (115).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (58 mg, 0.13 mmol) was prepared from 2-(5,6-dimethylpyridin-3-yl)-2H-1,2,4-benzothiadiazin-3(4H)-one 1,1-dioxide (IntA29) (150 mg, 0.49 mmol), 2,6-difluoro-4-methoxybenzyl bromide (129 mg, 0.54 mmol) and K2CO3 (102 mg, 0.74 mmol) in DMF (3 mL) at 50° C. using the methods of (115).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (60 mg, 0.13 mmol) was prepared from 2-(6-methoxy-5-methylpyridin-3-yl)-2H-1,2,4-benzothiadiazin-3(4H)-one 1,1-dioxide (IntA28) (161 mg, 0.50 mmol), 2,6-difluoro-4-methoxybenzyl bromide (179 mg, 0.76 mmol) and K2CO3 (104 mg, 0.75 mmol) in DMF (3 mL) using the methods of (115).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (97 mg, 0.20 mmol) was prepared from (IntA19) (84 mg, 0.25 mmol), K2CO3 (104 mg, 0.75 mmol) and 2,6-difluoro-4-methoxybenzyl bromide (71 mg, 0.30 mmol) in DMF (2 mL) using the methods of (115).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (58 mg, 0.13 mmol) was prepared from (IntA15) (76 mg, 0.25 mmol), K2CO3 (104 mg, 0.75 mmol) and 2,6-difluoro-4-methoxybenzyl bromide (71 mg, 0.30 mmol) in DMF (2 mL) using the methods of (115).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound (59 mg, 0.12 mmol) was prepared from (IntA1) (84 mg, 0.25 mmol), K2CO3 (104 mg, 0.75 mmol) and 2,6-difluoro-4-methoxybenzyl bromide (71 mg, 0.30 mmol) in DMF (2 mL) using the methods of (115).