3-甲氧基-4-硼酸频那醇酯苯酚

反应条件: temp:110.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a 25 mL microwave vial was added 3-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (2.90 g, 10.8 mmol), 6-chloro-N-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine (Intermediate 1-1, 2.55 g, 9.00 mmol), NaHCO3 (2.27 g, 27.0 mmol) and tetrakis(triphenylphosphine) palladium(0) (0.520 g, 0.450 mmol). Dioxane (45 mL) and water (15 mL) were added, and the reaction mixture was purged with nitrogen for 10 minutes. The reaction mixture was heated under microwave irradiation at 110° C. for 16 h. After cooling to RT, the mixture was filtered through celite, washing the filter pad sequentially with ethyl acetate, DCM, and MeOH. Concentration of the filtrate afforded a brown solid which was purified by flash chromatography (80 g silica, 0-20% 2 M ammonia in MeOH gradient, in DCM) to provide 3-methoxy-4-(6-(methyl(2,2,6,6-tetramethylpiperidin-4-yl)amino)pyridazin-3-yl)phenol (1.6 g). MS (M+1)=371.3. the reaction mixture was purged with nitrogen for 10 minutes After cooling to RT the mixture was filtered through celite washing the filter pad sequentially with ethyl acetate, DCM, and MeOH Concentration of the filtrate afforded a brown solid which was purified by flash chromatography (80 g silica, 0-20% 2 M ammonia in MeOH gradient, in DCM)

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A vial was charged with 1-chloro-N-(4-methoxybenzyl)-N-(pyrimidin-4-yl)isoquinoline-6-sulfonamide (INTERMEDIATE ZZZZ, 122 mg, 0.277 mmol), 3-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (138 mg, 0.553 mmol), potassium carbonate (191 mg, 1.384 mmol), and Pd(PPh3)4 (32.0 mg, 0.028 mmol). The vial was flushed with Ar (g), then 1,4-dioxane (1038 μl) and water (346 μl) were added. The vial was sealed and heated to 80° C. for 2 h in a Biotage Initiator microwave reactor. The mixture was extracted with EtOAc (3×), and the combined organic extracts were concentrated. The residue was purified by chromatography on silica gel (25-g Interchim column, 35-85% EtOAc/Heptane, then with 85-100% EtOAc/Heptane) to give 1-(4-hydroxy-2-methoxyphenyl)-N-(4-methoxybenzyl)-N-(pyrimidin-4-yl)isoquinoline-6-sulfonamide (93.6 mg, 0.177 mmol, 64.0% yield) as an off-white solid. m/z (ESI) 529.2 (M+H)+. The vial was flushed with Ar (g) 1,4-dioxane (1038 μl) and water (346 μl) were added The vial was sealed The mixture was extracted with EtOAc (3×) the combined organic extracts were concentrated The residue was purified by chromatography on silica gel (25-g Interchim column, 35-85% EtOAc/Heptane

反应条件: temp:110.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a 25 mL microwave vial was added 3-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (2.90 g, 10.8 mmol), 6-chloro-N-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine (Intermediate 1-1, 2.55 g, 9.00 mmol), NaHCO3 (2.27 g, 27.0 mmol) and tetrakis(triphenylphosphine) palladium(0) (0.520 g, 0.450 mmol). Dioxane (45 mL) and water (15 mL) were added, and the reaction mixture was purged with nitrogen for 10 minutes. The reaction mixture was heated under microwave irradiation at 110° C. for 16 h. After cooling to RT, the mixture was filtered through celite, washing the filter pad sequentially with ethyl acetate, DCM, and MeOH. Concentration of the filtrate afforded a brown solid which was purified by flash chromatography (80 g silica, 0-20% 2 M ammonia in MeOH gradient, in DCM) to provide 3-methoxy-4-(6-(methyl(2,2,6,6-tetramethylpiperidin-4-yl)amino)pyridazin-3-yl)phenol (1.6 g). MS (M+1)=371.3. the reaction mixture was purged with nitrogen for 10 minutes After cooling to RT the mixture was filtered through celite washing the filter pad sequentially with ethyl acetate, DCM, and MeOH Concentration of the filtrate afforded a brown solid which was purified by flash chromatography (80 g silica, 0-20% 2 M ammonia in MeOH gradient, in DCM)