ethenesulfonamide

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

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of (E)-5-(1-(4-bromophenyl)-2-phenylbut-1-en-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (0.1 g, 0.25 mmol), ethenesulfonamide (80 mg, 0.74 mmol), Pd(Ph3P)2Cl2 (18 mg, 0.025 mmol), triethylamine (0.25 g, 2.5 mmol) in DMF (1.25 mL) was degassed with 3 vacuum/nitrogen cycles, heated at 100° C. overnight, and then cooled to room temperature. The reaction mixture was diluted with water, extracted with EtOAc, washed with water, brine, dried over sodium sulfate, and filtered. The filtrate was concentrated down to give a residue that was redissolved in EtOH (2.5 ml). HCl (0.5 mL, 1.25 N HCl in ethanol) was added, and the mixture was heated at 80° C. for 1 h, diluted with water, and then extracted with ethyl acetate (2×50 mL). The combined organic layers were washed with water, brine, dried over sodium sulfate, filtered, and concentrated to give the crude product. This crude material was purified on a RP-C18 column using 30-100% acetonitrile in water in the presence of 0.1% TFA to afford the title compound. LCMS: 430 (M+H)+. was degassed with 3 vacuum/nitrogen cycles cooled to room temperature The reaction mixture was diluted with water extracted with EtOAc washed with water, brine dried over sodium sulfate filtered The filtrate was concentrated down to give a residue that the mixture was heated at 80° C. for 1 h extracted with ethyl acetate (2×50 mL) The combined organic layers were washed with water, brine dried over sodium sulfate filtered concentrated to give the crude product This crude material was purified on a RP-C18 column

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of (E)-5-(1-(4-bromophenyl)-2-phenylbut-1-en-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (0.1 g, 0.25 mmol), ethenesulfonamide (80 mg, 0.74 mmol), Pd(Ph3P)2Cl2 (18 mg, 0.025 mmol), triethylamine (0.25 g, 2.5 mmol) in DMF (1.25 mL) was degassed with 3 vacuum/nitrogen cycles, heated at 100° C. overnight, and then cooled to room temperature. The reaction mixture was diluted with water, extracted with EtOAc, washed with water, brine, dried over sodium sulfate, and filtered. The filtrate was concentrated down to give a residue that was redissolved in EtOH (2.5 ml). HCl (0.5 mL, 1.25 N HCl in ethanol) was added, and the mixture was heated at 80° C. for 1 h, diluted with water, and then extracted with ethyl acetate (2×50 mL). The combined organic layers were washed with water, brine, dried over sodium sulfate, filtered, and concentrated to give the crude product. This crude material was purified on a RP-C18 column using 30-100% acetonitrile in water in the presence of 0.1% TFA to afford the title compound. LCMS: 430 (M+H)+. was degassed with 3 vacuum/nitrogen cycles cooled to room temperature The reaction mixture was diluted with water extracted with EtOAc washed with water, brine dried over sodium sulfate filtered The filtrate was concentrated down to give a residue that the mixture was heated at 80° C. for 1 h extracted with ethyl acetate (2×50 mL) The combined organic layers were washed with water, brine dried over sodium sulfate filtered concentrated to give the crude product This crude material was purified on a RP-C18 column

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 8-Bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene 194 (400 mg, 1.07 mmol), ethenesulfonic acid amide (172 mg, 1.60 mmol), triethylamine (223 μL, 1.60 mmol), tri-o-tolyl-phosphane (65 mg, 0.21 mmol) and palladium (II) acetate (12 mg, 0.05 mmol) were suspended in DMF (5 mL) and the reaction mixture degassed by bubbling argon through the suspension. The reaction mixture was heated at 130° C. for 16 h, before cooling to RT and diluting the mixture with ethyl acetate (10 mL). The resultant mixture was washed with water, extracted with ethyl acetate (2×10 mL) and the combined organic extracts washed with brine, dried (MgSO4) then concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM) to yield the title compound as a white solid (151 mg, 35%) LCMS: RT=2.69 min, [M+H]+=401. the reaction mixture degassed by bubbling argon through the suspension before cooling to RT diluting the mixture with ethyl acetate (10 mL) The resultant mixture was washed with water extracted with ethyl acetate (2×10 mL) the combined organic extracts washed with brine dried (MgSO4) then concentrated in vacuo The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-amino-4-(3-bromobenzoyl)-1-(4-fluorophenyl)pyrazole (1.5 g, 4.14 mmol) [prepared as described in Example 1 above], vinylsulfonamide (1.33 g, 12.4 mmol), bis(triphenylphosphine)palladium chloride (0.3 g, 0.42 mmol) and triethylamine (6 ml, 43 mmol) in dimethylformamide (18 ml) was heated at 100° C. under argon. After 16 h, the reaction mixture was cooled to room temperature and poured into 1 N hydrochloric acid. The product was extracted into ethyl acetate, washed with brine, dried over sodium sulfate and filtered. The organic layer was removed in vacuo and the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane) to give 5-amino-4-[3-(2-aminosulfonylethenyl)benzoyl]-1-(4-fluorophenyl)pyrazole which was recrystallized from a mixture of methanol/ethyl acetate/hexane to give 0.78 g of the desired product. the reaction mixture was cooled to room temperature The product was extracted into ethyl acetate washed with brine dried over sodium sulfate filtered The organic layer was removed in vacuo the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-amino-4-(3-bromobenzoyl)-1-(4-fluorophenyl)pyrazole (1.5 g, 4.14 mmol) [prepared as described in Example 1 above], vinylsulfonamide (1.33 g, 12.4 mmol), bis(triphenylphosphine)palladium chloride (0.3 g, 0.42 mmol) and triethylamine (6 ml, 43 mmol) in dimethylformamide (18 ml) was heated at 100° C. under argon. After 16 h, the reaction mixture was cooled to room temperature and poured into 1 N hydrochloric acid. The product was extracted into ethyl acetate, washed with brine, dried over sodium sulfate and filtered. The organic layer was removed in vacuo and the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane) to give 5-amino-4-[3-(2-aminosulfonylethenyl)benzoyl]-1-(4-fluorophenyl)pyrazole which was recrystallized from a mixture of methanol/ethyl acetate/hexane to give 0.78 g of the desired product. the reaction mixture was cooled to room temperature The product was extracted into ethyl acetate washed with brine dried over sodium sulfate filtered The organic layer was removed in vacuo the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-amino-4-(3-bromobenzoyl)-1-(4-fluorophenyl)pyrazole (1.5 g, 4.14 mmol) [prepared as described in Example 1 above], vinylsulfonamide (1.33 g, 12.4 mmol), bis(triphenylphosphine)palladium chloride (0.3 g, 0.42 mmol) and triethylamine (6 ml, 43 mmol) in dimethylformamide (18 ml) was heated at 100° C. under argon. After 16 h, the reaction mixture was cooled to room temperature and poured into 1 N hydrochloric acid. The product was extracted into ethyl acetate, washed with brine, dried over sodium sulfate and filtered. The organic layer was removed in vacuo and the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane) to give 5-amino-4-[3-(2-aminosulfonylethenyl)benzoyl]-1-(4-fluorophenyl)pyrazole which was recrystallized from a mixture of methanol/ethyl acetate/hexane to give 0.78 g of the desired product. the reaction mixture was cooled to room temperature The product was extracted into ethyl acetate washed with brine dried over sodium sulfate filtered The organic layer was removed in vacuo the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-amino-4-(3-bromobenzoyl)-1-(4-fluorophenyl)pyrazole (1.5 g, 4.14 mmol) [prepared as described in Example 1 above], vinylsulfonamide (1.33 g, 12.4 mmol), bis(triphenylphosphine)palladium chloride (0.3 g, 0.42 mmol) and triethylamine (6 ml, 43 mmol) in dimethylformamide (18 ml) was heated at 100° C. under argon. After 16 h, the reaction mixture was cooled to room temperature and poured into 1 N hydrochloric acid. The product was extracted into ethyl acetate, washed with brine, dried over sodium sulfate and filtered. The organic layer was removed in vacuo and the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane) to give 5-amino-4-[3-(2-aminosulfonylethenyl)benzoyl]-1-(4-fluorophenyl)pyrazole which was recrystallized from a mixture of methanol/ethyl acetate/hexane to give 0.78 g of the desired product. the reaction mixture was cooled to room temperature The product was extracted into ethyl acetate washed with brine dried over sodium sulfate filtered The organic layer was removed in vacuo the residue was purified by flash chromatography (elution gradient: 40-80% ethyl acetate/hexane)

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 8-Bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene 194 (400 mg, 1.07 mmol), ethenesulfonic acid amide (172 mg, 1.60 mmol), triethylamine (223 μL, 1.60 mmol), tri-o-tolyl-phosphane (65 mg, 0.21 mmol) and palladium (II) acetate (12 mg, 0.05 mmol) were suspended in DMF (5 mL) and the reaction mixture degassed by bubbling argon through the suspension. The reaction mixture was heated at 130° C. for 16 h, before cooling to RT and diluting the mixture with ethyl acetate (10 mL). The resultant mixture was washed with water, extracted with ethyl acetate (2×10 mL) and the combined organic extracts washed with brine, dried (MgSO4) then concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM) to yield the title compound as a white solid (151 mg, 35%) LCMS: RT=2.69 min, [M+H]+=401. the reaction mixture degassed by bubbling argon through the suspension before cooling to RT diluting the mixture with ethyl acetate (10 mL) The resultant mixture was washed with water extracted with ethyl acetate (2×10 mL) the combined organic extracts washed with brine dried (MgSO4) then concentrated in vacuo The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM)

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 8-Bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene 194 (400 mg, 1.07 mmol), ethenesulfonic acid amide (172 mg, 1.60 mmol), triethylamine (223 μL, 1.60 mmol), tri-o-tolyl-phosphane (65 mg, 0.21 mmol) and palladium (II) acetate (12 mg, 0.05 mmol) were suspended in DMF (5 mL) and the reaction mixture degassed by bubbling argon through the suspension. The reaction mixture was heated at 130° C. for 16 h, before cooling to RT and diluting the mixture with ethyl acetate (10 mL). The resultant mixture was washed with water, extracted with ethyl acetate (2×10 mL) and the combined organic extracts washed with brine, dried (MgSO4) then concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM) to yield the title compound as a white solid (151 mg, 35%) LCMS: RT=2.69 min, [M+H]+=401. the reaction mixture degassed by bubbling argon through the suspension before cooling to RT diluting the mixture with ethyl acetate (10 mL) The resultant mixture was washed with water extracted with ethyl acetate (2×10 mL) the combined organic extracts washed with brine dried (MgSO4) then concentrated in vacuo The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM)

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To the solution of 1-(4-methyl-benzo[b]thiophen-3-ylmethyl)-1,3-dihydro-benzimidazol-2-one (50 mg, 0.17 mmol) in THF (1.0 mL) are added ethenesulfonic acid amide (40 mg, 0.34 mmol) and solid NaOH (14 mg, 0.34 mmol). The mixture is warmed up to 65° C. for 24 hr and then saturated NH4Cl solution (5.0 mL) is added along with water (5.0 mL). The mixture is extracted with EtOAc (3×20 mL). The organic layers are combined, dried (Na2SO4) and concentrated to give crude product. Purification by preparative TLC using 4% MeOH in CH2Cl2 affords 31 mg (46%) of 2-[3-(4-Methyl-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-ethanesulfonic acid amide. LCMS (ESMS): m/z 402.10 (M+H+). The mixture is extracted with EtOAc (3×20 mL) dried (Na2SO4) concentrated to give crude product Purification by preparative TLC

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 8-Bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene 194 (400 mg, 1.07 mmol), ethenesulfonic acid amide (172 mg, 1.60 mmol), triethylamine (223 μL, 1.60 mmol), tri-o-tolyl-phosphane (65 mg, 0.21 mmol) and palladium (II) acetate (12 mg, 0.05 mmol) were suspended in DMF (5 mL) and the reaction mixture degassed by bubbling argon through the suspension. The reaction mixture was heated at 130° C. for 16 h, before cooling to RT and diluting the mixture with ethyl acetate (10 mL). The resultant mixture was washed with water, extracted with ethyl acetate (2×10 mL) and the combined organic extracts washed with brine, dried (MgSO4) then concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM) to yield the title compound as a white solid (151 mg, 35%) LCMS: RT=2.69 min, [M+H]+=401. the reaction mixture degassed by bubbling argon through the suspension before cooling to RT diluting the mixture with ethyl acetate (10 mL) The resultant mixture was washed with water extracted with ethyl acetate (2×10 mL) the combined organic extracts washed with brine dried (MgSO4) then concentrated in vacuo The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM)