tert-butyl N-(azetidin-3-ylmethyl)carbamate

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: The title compound was prepared from 3-(N-tert-butyloxycarbonylaminoethyl)-1-benzhydryl azetidine according the procedure for 3-(N-tert-butyloxycarbonylaminomethyl) azetidine, in a yield of 1.2 g (70%).

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

Procedure: 3.4 g (9.6 mmol) of 3-(N-tert-butyloxycarbonylaminomethyl)-1-benzhydryl azetidine was dissolved in 170 mL MeOH and hydrogenated over 0.30 g Pd(OH)2 at 5 MPa over night. The catalyst was filtered off and the solvent evaporated. The crude product was purified by flash chromatography using MeOH/CH2Cl2, 1/9, followed by MeOH (saturated with NH3 (g))/CH2Cl2, 1/9, as eluent to yield 1.2 g (67%) of the title compound. The catalyst was filtered off the solvent evaporated The crude product was purified by flash chromatography

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

Conditions: temp:55.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 1-fluoro-4-nitrobenzene (0.61 g, 4.32 mmol) and tert-butyl azetidin-3-ylmethylcarbamate (0.886 g, 4.76 mmol) in dimethylformamide (8.65 ml) was treated with potassium carbonate (0.896 g, 6.48 mmol) and the suspension was heated at 55° C. (12 pm) for 3 hours and at ambient temperature for 16 hours. The reaction was poured into water and the suspension was filtered. The solid was washed with water and dried to provide the title compound. the suspension was filtered The solid was washed with water dried

Conditions: temp:55.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 1-fluoro-4-nitrobenzene (0.61 g, 4.32 mmol) and tert-butyl azetidin-3-ylmethylcarbamate (0.886 g, 4.76 mmol) in dimethylformamide (8.65 ml) was treated with potassium carbonate (0.896 g, 6.48 mmol) and the suspension was heated at 55° C. (12 pm) for 3 hours and at ambient temperature for 16 hours. The reaction was poured into water and the suspension was filtered. The solid was washed with water and dried to provide the title compound. the suspension was filtered The solid was washed with water dried

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

Procedure: {1-[2-(5,6-Dimethoxy-1-methyl-1H-indol-3-yl)-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyrid-4-ylmethyl]azetidin-3-ylmethyl}carbamic acid tert-butyl ester is prepared as described in Example 200b starting with 0.14 g of 4-chloromethyl-2-(5,6-dimethoxy-1-methyl-1H-indol-3-yl)-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine and 0.123 g of azetidin-3-ylmethylcarbamic acid tert-butyl ester instead of the piperid-4-ol used in Example 200b. After purification by flash-pack chromatography (SiO2, dichloromethane/methanol 95/5 by volume as eluent), 0.154 g of {1-[2-(5,6-dimethoxy-1-methyl-1H-indol-3-yl)-1H-pyrrolo[2,3-b]pyrid-4-ylmethyl]azetidin-3-ylmethyl}carbamic acid tert-butyl ester is obtained, the characteristics of which are as follows: After purification by flash-pack chromatography (SiO2, dichloromethane/methanol 95/5 by volume as eluent)

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

Procedure: The title compound was prepared from 3-(N-tert-butyloxycarbonylaminoethyl)-1-benzhydryl azetidine according the procedure for 3-(N-tert-butyloxycarbonylaminomethyl) azetidine, in a yield of 1.2 g (70%).

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

Procedure: 3.4 g (9.6 mmol) of 3-(N-tert-butyloxycarbonylaminomethyl)-1-benzhydryl azetidine was dissolved in 170 mL MeOH and hydrogenated over 0.30 g Pd(OH)2 at 5 MPa over night. The catalyst was filtered off and the solvent evaporated. The crude product was purified by flash chromatography using MeOH/CH2Cl2, 1/9, followed by MeOH (saturated with NH3 (g))/CH2Cl2, 1/9, as eluent to yield 1.2 g (67%) of the title compound. The catalyst was filtered off the solvent evaporated The crude product was purified by flash chromatography

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

Procedure: To a solution of 4′-fluoro-4-nitro-[1,1′-biphenyl]-3-amine (1.5 g, 6.46 mmol) in DCM (50 mL) were added triphosgene (1.917 g, 6.46 mmol) and TEA (8.5 g, 84 mmol) at 0° C. The reaction mixture was stirred at room temperature for two hours. tert-butyl azetidin-3-ylmethylcarbamate (1.203 g, 6.46 mmol) was then added at 0° C. and the reaction mixture was stirred at room temperature for four hours. The reaction crude was diluted with saturated citric acid solution and extracted with DCM. The organic layer was washed with water, brine, dried over Na2SO4, filtered and concentrated to yield crude residue which was purified by column chromatography eluting with 30% EtOAc in Hexane to afford tert-butyl((1-((4′-fluoro-4-nitro-[1,1′-biphenyl]-3-yl)carbamoyl)azetidin-3-yl)methyl)carbamate (2 g, 69.7% yield). the reaction mixture was stirred at room temperature for four hours The reaction crude extracted with DCM The organic layer was washed with water, brine dried over Na2SO4 filtered concentrated to yield crude residue which was purified by column chromatography eluting with 30% EtOAc in Hexane