(2-propan-2-yloxyphenyl)boronic acid

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:; See reaction.notes.procedure_details.

Procedure: Add tetrakis(triphenylphosphine)palladium(0) (500 mg) to a degassed suspension of 4-bromo-1H-imidazole (5.0 g, 34 mmol) and 2-isopropoxyphenyl boronic acid (9.19 g, 51 mmol) in dioxane (250 mL) and 2 M sodium carbonate solution (10.81 g, 102 mmol) at room temperature under nitrogen and heat the mixture at reflux for 21 hours. Remove the solvent under reduced pressure, dilute the residue with ethyl acetate (500 mL) and filter through a plug of Celite. Dry the filtrate over sodium sulfate, treat with silica gel (20 g) and remove the solvent under reduced pressure. Purify the residue by flash column chromatography on silica gel, eluting with ethyl acetate, to afford crude 4-(2-isopropoxyphenyl)-1H-imidazole (5.01 g, 73%) which is used without further purification in the next step. heat the mixture at reflux for 21 hours Remove the solvent under reduced pressure dilute the residue with ethyl acetate (500 mL) filter through a plug of Celite Dry the filtrate over sodium sulfate treat with silica gel (20 g) remove the solvent under reduced pressure Purify the residue by flash column chromatography on silica gel eluting with ethyl acetate

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

Procedure: To a stirred mixture of 4-(6-chloro-pyrimidin-4-ylcarbamoyl)-piperidine-1-carboxylic acid benzyl ester (VIII) (0.830 g, 2.22 mmol), 2-isopropyloxyphenylboronic acid (0.400 g, 2.22 mmol) in saturated sodium carbonate solution (10 ml) and 1,4-dioxane (10 ml) was added palladium(II) acetate (0.1 g, 0.44 mmol) followed by triphenylphosphine (0.11 g, 0.42 mmol) at room temperature under an atmosphere of nitrogen. The resulting mixture was heated to reflux at 110° C. for one hour and monitored by TLC. The reaction mixture was filtered through a celite bed and the filtrate was extracted with ethyl acetate (3×100 ml). The organic layers were separated, combined, dried over sodium sulfate and concentrated under reduced pressure. The crude product was purified by flash column chromatography (silica gel, elution with 50% ethyl acetate/n-hexanes) to afford 4-[6-(2-isopropoxy-phenyl)-pyrimidin-4-ylcarbamoyl]-piperidine-1-carboxylic acid benzyl ester (XIII) (0.36 g, 37%) as a white solid. The resulting mixture was heated The reaction mixture was filtered through a celite bed the filtrate was extracted with ethyl acetate (3×100 ml) The organic layers were separated dried over sodium sulfate concentrated under reduced pressure The crude product was purified by flash column chromatography (silica gel, elution with 50% ethyl acetate/n-hexanes)

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

Procedure: The title compound was prepared in analogy to example 25, from N-(4-bromo-pyridin-3-yl)-N-methyl-3,5-bis-trifluoromethyl-benzamide (example 25, intermediate a) and 2-isopropoxyphenylboronic acid (CAS RN 138008-97-6). Black solid (25%). MS (ESI): m/z=483.0 [M+H]+.

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

Procedure: 2-Chloro-8-(2-isopropoxy-phenyl)-[1,2,4]triazolo[1,5-a]pyridine was prepared from 8-bromo-2-chloro-[1,2,4]triazolo[1,5-a]pyridine and 2-isopropoxyphenylboronic acid in a manner analogous to Example 2c (0.24 g, 40%). MS=288 (MH)+.

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

Procedure: 2-Chloro-8-(2-isopropoxy-phenyl)-[1,2,4]triazolo[1,5-a]pyridine was prepared from 8-bromo-2-chloro-[1,2,4]triazolo[1,5-a]pyridine and 2-isopropoxyphenylboronic acid in a manner analogous to Example 2c (0.24 g, 40%). MS=288 (MH)+.

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

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

Procedure: A solution of benzoic acid N′-[2-(2-bromo-4-fluoro-phenoxy)-acetyl]-N′-isopropyl-hydrazide (50 mg, 0.122 mmol) in DME (3 ml)/2M Na2CO3 (0.215 ml, 0.427 mmol) was treated with 2-isopropoxylphenylboronic acid (32 mg, 0.183 mmol) and Pd[PPh3]4 (27 mg, 0.0244 mmol) for 12 hours at 90° C. The reaction mixture was partitioned between water and ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate, filtered, and concentrated. The crude was purified first on a silica gel column with 30% ethyl acetate/hexanes then by RP HPLC to afford the product as a white solid (22 mg, 38%). MS m/e 465.27 (M+H+) The reaction mixture was partitioned between water and ethyl acetate The organic layer was washed with brine dried over sodium sulfate filtered concentrated The crude was purified first on a silica gel column with 30% ethyl acetate/hexanes

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

Procedure: Prepared from 3-(7-bromo-8-methoxy-1-methyl-2-oxo-2,3-dihydro-1H-benzo[e][1,4]diazepin-5-yl)-benzonitrile Intermediate 9 using the same method described for Example 1 and instead of using benzene boronic acid, we used 2-isopropoxyphenyl boronic acid. The title compound (147 mg) was obtained as a white solid, (yield=86%).