甲基 (1S,3S)-3-氨基环己烷-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: Acetic anhydride (1.20 ml, 12.7 mmol) was added to a solution of trans-methyl 3-aminocyclohexane-carboxylate (0.40 g, 2.54 mmol) in pyridine (10 ml) at 0° C. The reaction mixture was warmed to room temperature and stirred for 1 h. The volatiles were removed in vacuum, the resulting residue was dissolved in DCM and washed with saturated sodium bicarbonate solution followed by brine solution (10 ml). After drying over anhydrous sodium sulfate and filtration the filtrate was concentrated under vacuum to afford 350 mg (69.0%) of trans-methyl 3-acetamidocyclohexanecarboxylate as a colorless liquid. The volatiles were removed in vacuum the resulting residue was dissolved in DCM washed with saturated sodium bicarbonate solution After drying over anhydrous sodium sulfate and filtration the filtrate was concentrated under vacuum

反应条件: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Thionyl chloride (0.6 ml) was added to a solution of trans-3-amino-cyclohexane carboxylic acid (0.5 g, 2.8 mmol) in MeOH (20 ml) at 0° C. The reaction mixture was heated to 65° C. and concentrated in vacuum. The resulting residue was partitioned between saturated sodium bicarbonate (10 ml) and extracted with ethyl acetate. The combined organic layer was washed with brine solution, dried over anhydrous sodium sulfate, filtered and concentrated under vacuum to afford 400 mg (90.9%) of trans-methyl 3-aminocyclohexanecarboxylate as colorless liquid. concentrated in vacuum The resulting residue was partitioned between saturated sodium bicarbonate (10 ml) extracted with ethyl acetate The combined organic layer was washed with brine solution dried over anhydrous sodium sulfate filtered concentrated under vacuum

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

实验步骤: Acetic anhydride (1.20 ml, 12.7 mmol) was added to a solution of trans-methyl 3-aminocyclohexane-carboxylate (0.40 g, 2.54 mmol) in pyridine (10 ml) at 0° C. The reaction mixture was warmed to room temperature and stirred for 1 h. The volatiles were removed in vacuum, the resulting residue was dissolved in DCM and washed with saturated sodium bicarbonate solution followed by brine solution (10 ml). After drying over anhydrous sodium sulfate and filtration the filtrate was concentrated under vacuum to afford 350 mg (69.0%) of trans-methyl 3-acetamidocyclohexanecarboxylate as a colorless liquid. The volatiles were removed in vacuum the resulting residue was dissolved in DCM washed with saturated sodium bicarbonate solution After drying over anhydrous sodium sulfate and filtration the filtrate was concentrated under vacuum

反应条件: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Thionyl chloride (0.6 ml) was added to a solution of trans-3-amino-cyclohexane carboxylic acid (0.5 g, 2.8 mmol) in MeOH (20 ml) at 0° C. The reaction mixture was heated to 65° C. and concentrated in vacuum. The resulting residue was partitioned between saturated sodium bicarbonate (10 ml) and extracted with ethyl acetate. The combined organic layer was washed with brine solution, dried over anhydrous sodium sulfate, filtered and concentrated under vacuum to afford 400 mg (90.9%) of trans-methyl 3-aminocyclohexanecarboxylate as colorless liquid. concentrated in vacuum The resulting residue was partitioned between saturated sodium bicarbonate (10 ml) extracted with ethyl acetate The combined organic layer was washed with brine solution dried over anhydrous sodium sulfate filtered concentrated under vacuum