N,N-dimethylazetidine-3-carboxamide;hydrochloride

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

Procedure: To a mixture of an optically active form (0.080 g) of 9-hydroxy-4-methyl-9-trifluoromethyl-9H-fluorene-2-carboxylic acid, azetidine-3-carboxylic acid dimethylamide hydrochloride (0.060 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.065 g), 1-hydroxybenzotriazole hydrate (0.052 g) and dimethylformamide (2 ml) was added triethylamine (0.073 ml), and the mixture was stirred at room temperature for 3 hr. To the reaction mixture was added ethyl acetate (15 ml), and the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the obtained residue was treated with ethyl ether. This slurry was filtered and the obtained solid was dried to give the title compound (0.054 g, 50%). the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water The organic layer was dried over anhydrous sodium sulfate filtered The filtrate was concentrated under reduced pressure the obtained residue was treated with ethyl ether This slurry was filtered the obtained solid was dried

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

Procedure: To a mixture of an optically active form (0.080 g) of 9-hydroxy-4-methyl-9-trifluoromethyl-9H-fluorene-2-carboxylic acid, azetidine-3-carboxylic acid dimethylamide hydrochloride (0.060 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.065 g), 1-hydroxybenzotriazole hydrate (0.052 g) and dimethylformamide (2 ml) was added triethylamine (0.073 ml), and the mixture was stirred at room temperature for 3 hr. To the reaction mixture was added ethyl acetate (15 ml), and the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the obtained residue was treated with ethyl ether. This slurry was filtered and the obtained solid was dried to give the title compound (0.054 g, 50%). the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water The organic layer was dried over anhydrous sodium sulfate filtered The filtrate was concentrated under reduced pressure the obtained residue was treated with ethyl ether This slurry was filtered the obtained solid was dried

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

Procedure: A mixture of t-butyl 3-dimethylcarbamoyl-azetidine-1-carboxylate (0.365 g) and 4N hydrogen chloride/dioxane solution (5 ml) was stirred at room temperature for 5 hr 15 min. The reaction mixture was concentrated under reduced pressure, dioxane was added to the obtained residue and the mixture was concentrated again under reduced pressure. The obtained residue was dried under reduced pressure at 60° C. to give the title compound (0.290 g). The obtained residue was directly used for the next reaction without further purification. The reaction mixture was concentrated under reduced pressure, dioxane was added to the obtained residue the mixture was concentrated again under reduced pressure The obtained residue was dried under reduced pressure at 60° C.

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

Procedure: A solution of 2-(2-ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbaldehyde (100 mg, 0.27 mmol) and azetidine-3-carboxylic acid dimethylamide hydrochloride salt (53 mg, 0.32 mmol) in DCE (4 mL) was stirred at ambient temperature for 1 h. Sodium triacetoxyborohydride (86 mg, 0.41 mmol) was added and the mixture stirred for 3 h, then loaded onto an Isolute® SCX-2 cartridge (10 g). The cartridge was then washed with methanol and the desired product was subsequently eluted using 2 M NH3 in MeOH. The product was collected and concentrated in vacuo. The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30) to afford 366 as a cream solid (107 mg, 83%). LCMS (Method G): RT=5.51 min, M+H+=504. 1H NMR (CDCl3, 400 MHz) δ 8.00 (m, 1 H); 7.75 (m, 1 H); 7.28 (m, 2 H); 4.34 (m, 4 H); 3.89-3.83 (m, 6 H); 3.83 (s, 3 H); 3.70-3.62 (m, 2 H); 3.57-3.46 (m, 3 H); 3.34 (q, J=7.5 Hz, 2 H); 2.96 (s, 3 H); 2.90 (s, 3 H) and 1.44 (t, J=7.5 Hz, 3 H) The cartridge was then washed with methanol the desired product was subsequently eluted The product was collected concentrated in vacuo The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30)

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

Procedure: A solution of 9-methyl-2-(2-methylbenzoimidazol-1-yl)-6-morpholin-4-yl-9H-purine-8-carbaldehyde (100 mg, 0.27 mmol) and azetidine-3-carboxylic acid dimethylamide hydrochloride salt (53 mg, 0.32 mmol) in DCE (4 mL) was stirred at ambient temperature for 1 h. Sodium triacetoxyborohydride (86 mg, 0.41 mmol) was added and the mixture stirred for 18 h, then loaded onto an Isolute® SCX-2 cartridge (10 g). The cartridge was then washed with methanol and the desired product was subsequently eluted using 2 M NH3 in MeOH. The product was collected and concentrated in vacuo. The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30) to afford 363 as a white solid (83 mg, 64%). LCMS (Method G): RT=5.23 min, M+H+=490. 1H NMR (CDCl3, 400 MHz) δ 8.08 (m, 1 H); 7.70 (m, 1 H); 7.28 (m, 2 H); 4.35 (m, 4 H); 3.89-3.82 (m, 9 H); 3.69-3.62 (m, 2 H); 3.57-3.46 (m, 3 H); 2.96 (s, 3 H); 2.93 (s, 3 H) and 2.90 (s, 3 H) The cartridge was then washed with methanol the desired product was subsequently eluted The product was collected concentrated in vacuo The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30)

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

Procedure: A solution of 2-(2-ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbaldehyde (100 mg, 0.27 mmol) and azetidine-3-carboxylic acid dimethylamide hydrochloride salt (53 mg, 0.32 mmol) in DCE (4 mL) was stirred at ambient temperature for 1 h. Sodium triacetoxyborohydride (86 mg, 0.41 mmol) was added and the mixture stirred for 3 h, then loaded onto an Isolute® SCX-2 cartridge (10 g). The cartridge was then washed with methanol and the desired product was subsequently eluted using 2 M NH3 in MeOH. The product was collected and concentrated in vacuo. The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30) to afford 366 as a cream solid (107 mg, 83%). LCMS (Method G): RT=5.51 min, M+H+=504. 1H NMR (CDCl3, 400 MHz) δ 8.00 (m, 1 H); 7.75 (m, 1 H); 7.28 (m, 2 H); 4.34 (m, 4 H); 3.89-3.83 (m, 6 H); 3.83 (s, 3 H); 3.70-3.62 (m, 2 H); 3.57-3.46 (m, 3 H); 3.34 (q, J=7.5 Hz, 2 H); 2.96 (s, 3 H); 2.90 (s, 3 H) and 1.44 (t, J=7.5 Hz, 3 H) The cartridge was then washed with methanol the desired product was subsequently eluted The product was collected concentrated in vacuo The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30)

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

Procedure: A solution of 9-methyl-2-(2-methylbenzoimidazol-1-yl)-6-morpholin-4-yl-9H-purine-8-carbaldehyde (100 mg, 0.27 mmol) and azetidine-3-carboxylic acid dimethylamide hydrochloride salt (53 mg, 0.32 mmol) in DCE (4 mL) was stirred at ambient temperature for 1 h. Sodium triacetoxyborohydride (86 mg, 0.41 mmol) was added and the mixture stirred for 18 h, then loaded onto an Isolute® SCX-2 cartridge (10 g). The cartridge was then washed with methanol and the desired product was subsequently eluted using 2 M NH3 in MeOH. The product was collected and concentrated in vacuo. The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30) to afford 363 as a white solid (83 mg, 64%). LCMS (Method G): RT=5.23 min, M+H+=490. 1H NMR (CDCl3, 400 MHz) δ 8.08 (m, 1 H); 7.70 (m, 1 H); 7.28 (m, 2 H); 4.35 (m, 4 H); 3.89-3.82 (m, 9 H); 3.69-3.62 (m, 2 H); 3.57-3.46 (m, 3 H); 2.96 (s, 3 H); 2.93 (s, 3 H) and 2.90 (s, 3H) The cartridge was then washed with methanol the desired product was subsequently eluted The product was collected concentrated in vacuo The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30)

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

Procedure: To a mixture of an optically active form (0.080 g) of 9-hydroxy-4-methyl-9-trifluoromethyl-9H-fluorene-2-carboxylic acid, azetidine-3-carboxylic acid dimethylamide hydrochloride (0.060 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.065 g), 1-hydroxybenzotriazole hydrate (0.052 g) and dimethylformamide (2 ml) was added triethylamine (0.073 ml), and the mixture was stirred at room temperature for 3 hr. To the reaction mixture was added ethyl acetate (15 ml), and the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the obtained residue was treated with ethyl ether. This slurry was filtered and the obtained solid was dried to give the title compound (0.054 g, 50%). the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water The organic layer was dried over anhydrous sodium sulfate filtered The filtrate was concentrated under reduced pressure the obtained residue was treated with ethyl ether This slurry was filtered the obtained solid was dried

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

Procedure: A mixture of t-butyl 3-dimethylcarbamoyl-azetidine-1-carboxylate (0.365 g) and 4N hydrogen chloride/dioxane solution (5 ml) was stirred at room temperature for 5 hr 15 min. The reaction mixture was concentrated under reduced pressure, dioxane was added to the obtained residue and the mixture was concentrated again under reduced pressure. The obtained residue was dried under reduced pressure at 60° C. to give the title compound (0.290 g). The obtained residue was directly used for the next reaction without further purification. The reaction mixture was concentrated under reduced pressure, dioxane was added to the obtained residue the mixture was concentrated again under reduced pressure The obtained residue was dried under reduced pressure at 60° C.

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

Procedure: To a mixture of an optically active form (0.080 g) of 9-hydroxy-4-methyl-9-trifluoromethyl-9H-fluorene-2-carboxylic acid, azetidine-3-carboxylic acid dimethylamide hydrochloride (0.060 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.065 g), 1-hydroxybenzotriazole hydrate (0.052 g) and dimethylformamide (2 ml) was added triethylamine (0.073 ml), and the mixture was stirred at room temperature for 3 hr. To the reaction mixture was added ethyl acetate (15 ml), and the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the obtained residue was treated with ethyl ether. This slurry was filtered and the obtained solid was dried to give the title compound (0.054 g, 50%). the mixture was successively washed once with hydrochloric acid, once with water, twice with saturated aqueous sodium hydrogen carbonate and 3 times with water The organic layer was dried over anhydrous sodium sulfate filtered The filtrate was concentrated under reduced pressure the obtained residue was treated with ethyl ether This slurry was filtered the obtained solid was dried

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

Procedure: A mixture of t-butyl 3-dimethylcarbamoyl-azetidine-1-carboxylate (0.365 g) and 4N hydrogen chloride/dioxane solution (5 ml) was stirred at room temperature for 5 hr 15 min. The reaction mixture was concentrated under reduced pressure, dioxane was added to the obtained residue and the mixture was concentrated again under reduced pressure. The obtained residue was dried under reduced pressure at 60° C. to give the title compound (0.290 g). The obtained residue was directly used for the next reaction without further purification. The reaction mixture was concentrated under reduced pressure, dioxane was added to the obtained residue the mixture was concentrated again under reduced pressure The obtained residue was dried under reduced pressure at 60° C.