苄基 (2S,4S)-2-氨基甲酰基-4-氟吡咯烷-1-羧酸乙酯

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A stirred solution of (4S)-I-[(Benzyloxy)carbonyl]-4-fluoro-L-proline in dioxane was treated with pyridine-(0.7 eq.) and Boc2O (1.3 eq.), then ammonium bicarbonate (1.26 eq.) was added and the mixture was stirred at room temperature for 15 hours. Dioxane was concentrated and the residue was taken up in ethyl acetate, washed with 1 N HCl and brine, dried over Na2SO4 to give, after filtration and concentration, title compound. Dioxane was concentrated washed with 1 N HCl and brine dried over Na2SO4 to give after filtration and concentration, title compound

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Benzyl-(2S,4S)-2-aminocarbonyl-4-fluoropyrrolidine-1-carboxylate in dichloromethane was treated at 0° C. with Et3N (2.1 eq.) and trifluoroacetic anhydride was added dropwise. was added dropwise

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A stirred solution of (4S)-1-[(Benzyloxy)carbonyl]-4-fluoro-L-proline in dioxane was treated with pyridine (0.7 eq.) and Boc2O (1.3 eq.), then ammonium bicarbonate (1.26 eq.) was added and the mixture was stirred at room temperature for 15 hours. Dioxane was concentrated and the residue was taken up in ethyl acetate, washed with 1 N HCl and brine, dried over Na2SO4 to give, after filtration and concentration, title compound. Dioxane was concentrated washed with 1 N HCl and brine dried over Na2SO4 to give after filtration and concentration, title compound

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Benzyl-(2S,4S)-2-aminocarbonyl-4-fluoropyrrolidine-1-carboxylate in dichloromethane was treated at 0° C. with Et3N (2.1 eq.) and trifluoroacetic anhydride was added dropwise. was added dropwise

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A stirred solution of (4S)-1-[(Benzyloxy)carbonyl]-4-fluoro-L-proline in dioxane was treated with pyridine (0.7 eq.) and Boc2O (1.3 eq.), then ammonium bicarbonate (1.26 eq.) was added and the mixture was stirred at room temperature for 15 hours. Dioxane was concentrated and the residue was taken up in ethyl acetate, washed with 1 N HCl and brine, dried over Na2SO4 to give, after filtration and concentration, title compound. Dioxane was concentrated washed with 1 N HCl and brine dried over Na2SO4 to give after filtration and concentration, title compound

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Benzyl-(2S,4S)-2-aminocarbonyl-4-fluoropyrrolidine-1-carboxylate in dichloromethane was treated at 0° C. with Et3N (2.1 eq.) and trifluoroacetic anhydride was added dropwise. was added dropwise

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Benzyl-(2S,4S)-2-aminocarbonyl-4-fluoropyrrolidine-1-carboxylate in dichloromethane was treated at 0° C. with Et3N (2.1 eq.) and trifluoroacetic anhydride was added dropwise. was added dropwise

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A stirred solution of (4S)-1-[(Benzyloxy)carbonyl]-4-fluoro-L-proline in dioxane was treated with pyridine (0.7 eq.) and Boc2O (1.3 eq.), then ammonium bicarbonate (1.26 eq.) was added and the mixture was stirred at room temperature for 15 hours. Dioxane was concentrated and the residue was taken up in ethyl acetate, washed with 1 N HCl and brine, dried over Na2SO4 to give, after filtration and concentration, title compound. Dioxane was concentrated washed with 1 N HCl and brine dried over Na2SO4 to give after filtration and concentration, title compound