3-bromo-5-formylbenzonitrile

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: To a solution of 3-[1-(ethylsulfonyl)-4-piperidinyl]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-7-carboxamide (46 mg, 0.1 mmol) in dioxane (2.0 mL) and H2O (0.7 mL) was added 3-bromo-5-formylbenzonitrile (68 mg, 0.3 mmol), and potassium carbonate (83 mg, 0.6 mmol). The mixture was degassed for 5 min before addition of tetrakis(triphenylphosphine) palladium (0) (12 mg, 0.01 mmol). The mixture was reacted in the microwave at 160° C. for 20 min. The compound was purified by Gilson Preparatory HPLC to give 5-(3-cyano-5-formylphenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide. The mixture was reacted in the microwave at 160° C. for 20 min The compound was purified by Gilson Preparatory HPLC

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

Procedure: To a solution of 3-bromo-5-formylbenzamide (1.5 g, 6.58 mmol) in H2O (50.0 mL) and MeCN (50.0 mL) was added PdCl2 (117 mg, 0.658 mmol). The mixture was stirred for 72 h at room temperature and another portion of H2O (100 mL) and MeCN (100 mL) was added followed with addition of PdCl2 (100 mg, 0.56 mol). The mixture was stirred for another 12 hr and concentrated. The residue was dissolved in EtOAc (200 mL), washed with brine (3×50.0 mL), dried over Na2SO4 and concentrated, and then was purified by chromatography (10% EtOAc in hexanes) to give 550 mg of 3-bromo-5-formylbenzonitrile (40%). The mixture was stirred for another 12 hr concentrated The residue was dissolved in EtOAc (200 mL) washed with brine (3×50.0 mL) dried over Na2SO4 concentrated was purified by chromatography (10% EtOAc in hexanes)

Conditions: temp:160.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 3-[1-(ethylsulfonyl)-4-piperidinyl]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-7-carboxamide (46 mg, 0.1 mmol) in dioxane (2.0 mL, 0.7 mL) was added 3-bromo-5-formylbenzonitrile (68 mg, 0.3 mmol) and K2CO3 (83 mg, 0.6 mmol) in a microwave tube. The reaction mixture was degassed for 5 min before addition of tetrakis(triphenylphosphosphine) palladium (0) (11 mg, 0.01 mmol). The reaction was heated in a microwave for 20 min at 160° C. It was then purified by Gilson Preparatory HPLC to give 5-(3-cyano-5-formylphenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide. It was then purified by Gilson Preparatory HPLC

Conditions: temp:160.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 3-[1-(ethylsulfonyl)-4-piperidinyl]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-7-carboxamide (46 mg, 0.1 mmol) in dioxane (2.0 mL, 0.7 mL) was added 3-bromo-5-formylbenzonitrile (68 mg, 0.3 mmol) and K2CO3 (83 mg, 0.6 mmol) in a microwave tube. The reaction mixture was degassed for 5 min before addition of tetrakis(triphenylphosphosphine) palladium (0) (11 mg, 0.01 mmol). The reaction was heated in a microwave for 20 min at 160° C. It was then purified by Gilson Preparatory HPLC to give 5-(3-cyano-5-formylphenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide. It was then purified by Gilson Preparatory HPLC

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

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

Procedure: To 3-bromo-5-formylbenzonitrile (420 mg, 2 mmol), isopropenyl potassium trifluoroborate (296 mg, 2 mmol) and triethyl amine (0.42 ml) in 2-propanol and water (20 ml) in 2:1 ratio, PdCl2(dppf) (65 mg, 0.08 mmol) was added and the reaction mixture was refluxed for 5 h. Then the reaction mixture was cooled, diluted with ether, washed with water, brine and dried. Crude residue was column chromatographed (60% ethylacetate: 40% hexane) to yield a white solid of 3-formyl-5-(prop-1-en-2-yl)benzonitrile. the reaction mixture was refluxed for 5 h Then the reaction mixture was cooled washed with water, brine dried chromatographed (60% ethylacetate: 40% hexane)

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

Procedure: To a solution of 3-[1-(ethylsulfonyl)-4-piperidinyl]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-7-carboxamide (46 mg, 0.1 mmol) in dioxane (2.0 mL) and H2O (0.7 mL) was added 3-bromo-5-formylbenzonitrile (68 mg, 0.3 mmol), and potassium carbonate (83 mg, 0.6 mmol). The mixture was degassed for 5 min before addition of tetrakis (triphenylphosphine) palladium (0) (12 mg, 0.01 mmol). The mixture was reacted in the microwave at 160° C. for 20 min. The compound was purified by Gilson Preparatory HPLC to give 5-(3-cyano-5-formylphenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide. The mixture was reacted in the microwave at 160° C. for 20 min The compound was purified by Gilson Preparatory HPLC

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

Procedure: To a solution of 3-bromo-5-formylbenzamide (1.5 g, 6.58 mmol) in H2O (50.0 mL) and MeCN (50.0 mL) was added PdCl2 (117 mg, 0.658 mmol). The mixture was stirred for 72 h at room temperature and another portion of H2O (100 mL) and MeCN (100 mL) was added followed with addition of PdCl2 (100 mg, 0.56 mol). The mixture was stirred for another 12 hr and concentrated. The residue was dissolved in EtOAc (200 mL), washed with brine (3×50.0 mL), dried over Na2SO4 and concentrated, and then was purified by chromatography (10% EtOAc in hexanes) to give 550 mg of 3-bromo-5-formylbenzonitrile (40%). The mixture was stirred for another 12 hr concentrated The residue was dissolved in EtOAc (200 mL) washed with brine (3×50.0 mL) dried over Na2SO4 concentrated was purified by chromatography (10% EtOAc in hexanes)