(3R)-1-azabicyclo[2.2.2]octan-3-amine;dihydrochloride

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

Procedure: Phenyl 4-iodo-1H-pyrazole-1-carboxylate (1.6 g, 5.2 mmol) and (R)-(+)-3-aminoquinuclidine dihydrochloride (1.0 g, 5.2 mmol) are suspended in 10 mL DMF. DIEA (2.7 mL, 15.5 mmol) is added dropwise. After 36 h, the solvent is removed and the residue is taken up in 1N NaOH and CHCl3. The aqueous layer is extracted with CHCl3, dried (MgSO4), filtered and concentrated. The residue is purified by chromatography (Biotage 40S, 90:9:1 CHCl3/MeOH/NH4OH) to provide 1.66 g (93%) of the product as a white solid. A portion of the material is converted into the hydrochloride salt and recrystallized from MeOH/EtOAc. HRMS (FAB) calcd for C11H15IN4O+H 347.0370, found 347.0357. the solvent is removed The aqueous layer is extracted with CHCl3 dried (MgSO4) filtered concentrated The residue is purified by chromatography (Biotage 40S, 90:9:1 CHCl3/MeOH/NH4OH)

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

Procedure: 143 mg (0.55 mmol) of 5-fluoro-7-bromo-1-benzofuran-2-carboxylic acid, 100 mg (0.50 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 229.14 mg (0.6 mmol) of HATU, 234 mg (1.81 mmol) of N,N-diisopropylethylamine and 2.0 ml of DMF are reacted according to the general procedure (variant B). DMF is removed under reduced pressure and the crude product is dissolved in 1N aqueous sodium hydroxide solution. The aqueous phase is extracted with ethyl acetate and washed with saturated sodium chloride solution. The combined organic phases are dried over magnesium sulfate and the solvent is removed under reduced pressure using a rotary evaporator. The crude product is taken up in methanol and, together with acidic ion exchange resin (Dowex WX2-200), shaken for about 20 min. The loaded ion exchanger is washed three times with in each case 30 ml of methanol, then with water, again with methanol, with dichloromethane and finally again with methanol. The product is eluted with methanol/triethylamine 95:5. The solvent is removed under reduced pressure using a rotary evaporator. 181 mg (98% of theory) of the title compound are isolated. DMF is removed under reduced pressure the crude product is dissolved in 1N aqueous sodium hydroxide solution The aqueous phase is extracted with ethyl acetate washed with saturated sodium chloride solution The combined organic phases are dried over magnesium sulfate the solvent is removed under reduced pressure a rotary evaporator The loaded ion exchanger is washed three times with in each case 30 ml of methanol The product is eluted with methanol/triethylamine 95:5 The solvent is removed under reduced pressure a rotary evaporator

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

Procedure: 55 mg (0.28 mmol) of 5,7-difluoro-1-benzofuran-2-carboxylic acid, 50 mg (0.25 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 114.6 mg (0.3 mmol) of HATU, 117 mg (0.9 mmol) of N,N-diisopropylethylamine and 2.0 ml of DMF are reacted according to the general procedure (variant B). DMF is removed under reduced pressure and the crude product is dissolved in 1N aqueous sodium hydroxide solution. The aqueous phase is extracted with ethyl acetate. The combined organic phases are dried over magnesium sulfate and the solvent is removed under reduced pressure using a rotary evaporator. The crude product is taken up in methanol and, together with acidic ion exchange resin (Dowex WX2-200), shaken for about 20 min. The loaded ion exchanger is washed three times with in each case 30 ml of methanol, then with water, again with methanol, with dichloromethane and finally again with methanol. The product is eluted with methanol/triethylamine 95:5. The solvent is removed under reduced pressure using a rotary evaporator. 40 mg (52% of theory) of the title compound are isolated. DMF is removed under reduced pressure the crude product is dissolved in 1N aqueous sodium hydroxide solution The aqueous phase is extracted with ethyl acetate The combined organic phases are dried over magnesium sulfate the solvent is removed under reduced pressure a rotary evaporator The loaded ion exchanger is washed three times with in each case 30 ml of methanol The product is eluted with methanol/triethylamine 95:5 The solvent is removed under reduced pressure a rotary evaporator

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

Procedure: 1040 mg (5.02 mmol) of 6-nitrobenzofuran-2-carboxylic acid, 1000 mg (5.02 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 2290 mg (6.03 mmol) of HATU, 2250 mg (18.08 mmol) of N,N-diisopropylethylamine and 9 ml of DMF are reacted according to the general procedure (variant B). DMF is removed under reduced pressure. The product is taken up in 100 ml of 1N aqueous sodium hydroxide solution and extracted three times with in each case 50 ml of ethyl acetate. The combined organic phases are washed eight times with 1N aqueous sodium hydroxide solution and once with saturated sodium chloride solution and then dried over magnesium sulfate, and the solvent is removed under reduced pressure using a rotary evaporator. 1.34 g (79% of theory) of the title compound are obtained. DMF is removed under reduced pressure extracted three times with in each case 50 ml of ethyl acetate The combined organic phases are washed eight times with 1N aqueous sodium hydroxide solution once with saturated sodium chloride solution and then dried over magnesium sulfate the solvent is removed under reduced pressure a rotary evaporator

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

Procedure: 1040 mg (5.02 mmol) of 6-nitrobenzofuran-2-carboxylic acid, 1000 mg (5.02 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 2290 mg (6.03 mmol) of HATU, 2250 mg (18.08 mmol) of N,N-diisopropylethylamine and 15 ml of DMF are reacted according to the general procedure (variant B). DMF is removed under reduced pressure. The product is taken up in 100 ml of 1N aqueous sodium hydroxide solution and extracted three times with in each case 50 ml of ethyl acetate. The combined organic phases are dried over magnesium sulfate and the solvent is removed under reduced pressure using a rotary evaporator. The reaction mixture is taken up in methanol and, together with acidic ion exchange resin (Dowex WX2-200), stirred for about 40 min. The loaded ion exchange is washed six times with in each case 100 ml of methanol. The product is then eluted with methanol/triethylamine 99:1 to 90:10. The solvent is removed under reduced pressure. The product is dried over magnesium sulfate. 1.75 g (99% of theory) of the title compound are isolated. DMF is removed under reduced pressure extracted three times with in each case 50 ml of ethyl acetate The combined organic phases are dried over magnesium sulfate the solvent is removed under reduced pressure a rotary evaporator The loaded ion exchange is washed six times with in each case 100 ml of methanol The product is then eluted with methanol/triethylamine 99:1 to 90:10 The solvent is removed under reduced pressure The product is dried over magnesium sulfate

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

Procedure: 1248 mg (6.03 mmol) of 5-nitrobenzofuran-2-carboxylic acid, 1000 mg (5.02 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 2291 mg (6.03 mmol) of HATU, 2250 mg (18.08 mmol) of N,N-diisopropylethylamine and 15 ml of DMF are reacted according to the general procedure (variant B). DMF is removed under reduced pressure. The reaction mixture is taken up in methanol and stirred together with acidic ion exchange resin (Dowex WX2-200) for about 40 min. The loaded ion exchanger is washed six times with in each case 100 ml of methanol. It is then eluted using methanol/triethylamine 99:1 to 90:10. The solvent is removed under reduced pressure. The product is taken up in 1N aqueous sodium hydroxide solution and extracted three times with ethyl acetate. The extract is dried on magnesium sulfate. 1100 mg (69% of theory) of the title compound are isolated. DMF is removed under reduced pressure The loaded ion exchanger is washed six times with in each case 100 ml of methanol It is then eluted The solvent is removed under reduced pressure extracted three times with ethyl acetate The extract is dried on magnesium sulfate

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

Procedure: 133.7 mg (0.52 mmol) of 5-bromo-1-benzothiophene-2-carboxylic acid, 155.4 mg (0.78 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 296.7 mg (0.78 mmol) of HATU, 369.8 mg (2.86 mmol) of N,N-diisopropylethylamine and 1.5 ml of DMF are reacted according to the general procedure (variant A). The reaction mixture is purified by preparative HPLC. The product is dissolved in acetonitrile, and an excess of 1N hydrochloric acid is added. The solvent is then removed. 175 mg (84% of theory) of the title compound are isolated. The reaction mixture is purified by preparative HPLC The product is dissolved in acetonitrile an excess of 1N hydrochloric acid is added The solvent is then removed

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

Procedure: 4-(9′-Cyclopentyl-5′-methyl-6′-oxo-5′,6′,8′,9′-tetrahydrospiro[cyclopropane-1,7′-pyrimido[4,5-b][1,4]diazepine]-2′-ylamino)-3-methoxybenzoic acid (Intermediate 5) (0.11 g, 0.25 mmol, 1 eq), DIPEA (0.17 mL) and TBTU (88 mg, 0.28 mmol, 1.1 eq) were added to 5 mL DCM and the resulting solution stirred at rt for 30 min before the addition of (R)-(+)-3-aminoquinuclidine dihydrochloride (60 mg, 0.30 mmol, 1.2 eq). The RM was then stirred at rt for 16 hours before diluting with DCM and washing sequentially with water (×2), 50% saturated aqueous sodium hydrogen carbonate, saturated aqueous sodium hydrogen carbonate and saturated brine. The organic layer was dried (MgSO4) and concentrated in vacuo. The residue was dissolved in the minimum quantity of EtOAc before addition of n-heptane to precipitate (R)-4-(9′-cyclopentyl-5′-methyl-6′-oxo-5′,6′,8′,9′-tetrahydrospiro[cyclopropane-1,7′-pyrimido[4,5-b][1,4]diazepine]-2′-ylamino)-3-methoxy-N-(quinuclidin-3-yl)benzamide (white solid, 0.13 g, 96%). washing sequentially with water (×2), 50% saturated aqueous sodium hydrogen carbonate, saturated aqueous sodium hydrogen carbonate and saturated brine The organic layer was dried (MgSO4) concentrated in vacuo The residue was dissolved in the minimum quantity of EtOAc before addition of n-heptane to precipitate (R)-4-(9′-cyclopentyl-5′-methyl-6′-oxo-5′,6′,8′,9′-tetrahydrospiro[cyclopropane-1,7′-pyrimido[4,5-b][1,4]diazepine]-2′-ylamino)-3-methoxy-N-(quinuclidin-3-yl)benzamide (white solid, 0.13 g, 96%)

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

Procedure: 5.20 g (21.57 mmol) of 7-bromobenzofuran-2-carboxylic acid (Example 29A), 4.3 g (21.57 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 9.84 g (25.89 mmol) of HATU, 13.53 ml (74.68 mmol) of N,N-diisopropylethylamine and 21 ml of DMF are reacted by general method C. The solvent is removed under reduced pressure, and the crude product is taken up in 100 ml of ethyl acetate and washed 15 times with a total of 1.5 l of 1N sodium hydroxide solution. The organic phase is dried over magnesium sulphate and freed of solvent. 5.2 g (69% of theory) of the title compound are isolated. The solvent is removed under reduced pressure washed 15 times with a total of 1.5 l of 1N sodium hydroxide solution The organic phase is dried over magnesium sulphate

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

Procedure: 5.20 g (21.57 mmol) of 7-bromobenzofuran-2-carboxylic acid (Example 29A), 4.3 g (21.57 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 9.84 g (25.89 mmol) of HATU, 13.53 ml (74.68 mmol) of N,N-diisopropylethylamine and 21 ml of DMF are reacted by general method C. The solvent is removed under reduced pressure, and the crude product is taken up in 100 ml of ethyl acetate and washed 15 times with a total of 1.5 l of 1N sodium hydroxide solution. The organic phase is dried over magnesium sulphate and freed of solvent. 5.2 g (69% of theory) of the title compound are isolated. The solvent is removed under reduced pressure washed 15 times with a total of 1.5 l of 1N sodium hydroxide solution The organic phase is dried over magnesium sulphate

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

Procedure: 320.8 mg (1.1 mmol) of 6-cyano-1-benzothiophene-2-carboxylic acid (Example 25A), 200 mg (1.0 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 458.3 mg (1.21 mmol) of HATU, 467.3 mg (3.62 mmol) of N,N-diisopropylethylamine and 4.0 ml of DMF are reacted by general method C. The reaction mixture is purified by preparative HPLC. The product is dissolved in a mixture of methanol and 4 M hydrogen chloride in dioxane and then concentrated and dried under high vacuum. 222.1 mg (64% of theory) of the title compound are obtained. The reaction mixture is purified by preparative HPLC The product is dissolved in a mixture of methanol and 4 M hydrogen chloride in dioxane concentrated dried under high vacuum

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

Procedure: 320.8 mg (1.1 mmol) of 6-cyano-1-benzothiophene-2-carboxylic acid (Example 25A), 200 mg (1.0 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 458.3 mg (1.21 mmol) of HATU, 467.3 mg (3.62 mmol) of N,N-diisopropylethylamine and 4.0 ml of DMF are reacted by general method C. The reaction mixture is purified by preparative HPLC. The product is dissolved in a mixture of methanol and 4 M hydrogen chloride in dioxane and then concentrated and dried under high vacuum. 222.1 mg (64% of theory) of the title compound are obtained. The reaction mixture is purified by preparative HPLC The product is dissolved in a mixture of methanol and 4 M hydrogen chloride in dioxane concentrated dried under high vacuum