(2-AMINO-4-FLUORO-PHENYL)-CARBAMIC ACID TERT-BUTYL ESTER

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: The title compound was prepared from the tert-butyl 4-fluoro-2-nitrophenylcarbamate (Example A6; 3 mmol) by reduction with zinc according to the general procedure B. Obtained as a yellow solid (66%), MS (EI) 227 [(M+1)+].

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

Procedure: The title compound was prepared from the tert-butyl 4-fluoro-2-nitrophenylcarbamate (Example A6; 3 mmol) by reduction with zinc according to the general procedure B. Obtained as a yellow solid (66%), MS (EI) 227 [(M+1)+].

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

Procedure: To a solution of tert-butyl 4-fluoro-2-nitrophenylcarbamate (0.34 g) in THF (30 mL) was added a premixed solution of sodium hydrosulfite (2 g) and sodium bicarbonate (1 g) in water (50 mL). MeOH (10 mL) was also added to aid solution of the mixture, which was stirred at room temperature for 30 min, when sodium chloride was added to saturate the solution. The resulting mixture was extracted with EtOAc (2×). The combined organics were dried, filtered and evaporated to yield the titled compound (quant) that was used as such for the next step. 1H-NMR (300 MHz, CDCl3) δ 7.5 (dd, 1H), 6.6 (dd, 1H), 6.5 (m, 1H), 6.4 (br 1H), 4.7 (br 2H), 1.5 (s, 9H) ppm; MH+=227 (minor), 127 (-BOC), 171 (-tBu). to saturate the solution The resulting mixture was extracted with EtOAc (2×) The combined organics were dried filtered evaporated

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

Procedure: To a solution of tert-butyl 4-fluoro-2-nitrophenylcarbamate (0.34 g) in THF (30 mL) was added a premixed solution of sodium hydrosulfite (2 g) and sodium bicarbonate (1 g) in water (50 mL). MeOH (10 mL) was also added to aid solution of the mixture, which was stirred at room temperature for 30 min, when sodium chloride was added to saturate the solution. The resulting mixture was extracted with EtOAc (2×). The combined organics were dried, filtered and evaporated to yield the titled compound (quant) that was used as such for the next step. 1H-NMR (300 MHz, CDCl3) δ 7.5 (dd, 1H), 6.6 (dd, 1H), 6.5 (m, 1H), 6.4 (br 1H), 4.7 (br 2H), 1.5 (s, 9H) ppm; MH+=227 (minor), 127 (-BOC), 171 (-tBu). to saturate the solution The resulting mixture was extracted with EtOAc (2×) The combined organics were dried filtered evaporated

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

Procedure: The compound was prepared from (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester (Example J2) (226 mg, 1.0 mmol) and 3-[3-(2-methyl-pyridin-4-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester (Example K12) (311 mg, 1.0 mmol) according to the general procedure M. Obtained as an off-white foam (390 mg, 84%).

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

Procedure: The title compound was prepared from (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester (Example J2) (170 mg, 0.75 mmol) and 3-[3-(2-methyl-pyridin-3-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester (Example K5) (234 mg, 0.75 mmol) according to the general procedure M. Obtained as a light yellow solid (308 mg).

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

Procedure: The title compound was prepared from (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester (Example J2) (170 mg, 0.75 mmol) and 3-[3-(6-methyl-pyridin-3-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester (Example K4) (234 mg, 0.75 mmol) according to the general procedure M. Obtained as a light yellow solid (323 mg).

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

Procedure: The title compound was prepared from (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester (Example J2) (170 mg, 0.75 mmol) and 3-[3-(6-methyl-pyridin-3-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester (Example K4) (234 mg, 0.75 mmol) according to the general procedure M. Obtained as a light yellow solid (323 mg).