(3S)-3-aminooxolan-2-one;hydrobromide

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 1.48 g (8.15 mmoles) of (S)-2-amino-4-butyrolactone hydrobromide and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 80 ml of anhydrous CH2Cl2 is added slowly (4 hours) into a three-necked flask containing a solution of 0.89 g (3 mmoles) of triphosgene in 45 ml of anhydrous CH2Cl2, under an inert atmosphere. After stirring for a further 15 minutes, a solution of 1.5 g (8.15 mmoles) of N1-phenyl-1,2-benzenediamine and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 45 ml of anhydrous CH2Cl2 is added in one go. The reaction mixture is then heated for 5 hours at 60° C. After concentration to dryness under vacuum, the residue is divided between 50 ml of AcOEt and 50 ml of water. After stirring and decanting, the organic phase is washed successively with 50 ml of water and 50 ml of salt water. The organic solution is then dried over Na2SO4, filtered and concentrated under vacuum. The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2). Pink solid. After concentration to dryness under vacuum After stirring decanting the organic phase is washed successively with 50 ml of water and 50 ml of salt water The organic solution is then dried over Na2SO4 filtered concentrated under vacuum The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2)

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) are dissolved in 60 ml of anhydrous DMF, then 7.64 ml of (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 1.48 g (8.15 mmoles) of (S)-2-amino-4-butyrolactone hydrobromide and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 80 ml of anhydrous CH2Cl2 is added slowly (4 hours) into a three-necked flask containing a solution of 0.89 g (3 mmoles) of triphosgene in 45 ml of anhydrous CH2Cl2, under an inert atmosphere. After stirring for a further 15 minutes, a solution of 1.5 g (8.15 mmoles) of N1-phenyl-1,2-benzenediamine and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 45 ml of anhydrous CH2Cl2 is added in one go. The reaction mixture is then heated for 5 hours at 60° C. After concentration to dryness under vacuum, the residue is divided between 50 ml of AcOEt and 50 ml of water. After stirring and decanting, the organic phase is washed successively with 50 ml of water and 50 ml of salt water. The organic solution is then dried over Na2SO4, filtered and concentrated under vacuum. The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2). Pink solid. After concentration to dryness under vacuum After stirring decanting the organic phase is washed successively with 50 ml of water and 50 ml of salt water The organic solution is then dried over Na2SO4 filtered concentrated under vacuum The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2)

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 1.48 g (8.15 mmoles) of (S)-2-amino-4-butyrolactone hydrobromide and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 80 ml of anhydrous CH2Cl2 is added slowly (4 hours) into a three-necked flask containing a solution of 0.89 g (3 mmoles) of triphosgene in 45 ml of anhydrous CH2Cl2, under an inert atmosphere. After stirring for a further 15 minutes, a solution of 1.5 g (8.15 mmoles) of N1-phenyl-1,2-benzenediamine and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 45 ml of anhydrous CH2Cl2 is added in one go. The reaction mixture is then heated for 5 hours at 60° C. After concentration to dryness under vacuum, the residue is divided between 50 ml of AcOEt and 50 ml of water. After stirring and decanting, the organic phase is washed successively with 50 ml of water and 50 ml of salt water. The organic solution is then dried over Na2SO4, filtered and concentrated under vacuum. The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2). Pink solid. After concentration to dryness under vacuum After stirring decanting the organic phase is washed successively with 50 ml of water and 50 ml of salt water The organic solution is then dried over Na2SO4 filtered concentrated under vacuum The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2)

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) are dissolved in 60 ml of anhydrous DMF, then 7.64 ml of (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) is dissolved in 60 ml of anhydrous DMF then 7.64 ml (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) is dissolved in 60 ml of anhydrous DMF then 7.64 ml (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) is dissolved in 60 ml of anhydrous DMF then 7.64 ml (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) is dissolved in 60 ml of anhydrous DMF then 7.64 ml (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) is dissolved in 60 ml of anhydrous DMF then 7.64 ml (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 1.48 g (8.15 mmoles) of (S)-2-amino-4-butyrolactone hydrobromide and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 80 ml of anhydrous CH2Cl2 is added slowly (4 hours) into a three-necked flask containing a solution of 0.89 g (3 mmoles) of triphosgene in 45 ml of anhydrous CH2Cl2, under an inert atmosphere. After stirring for a further 15 minutes, a solution of 1.5 g (8.15 mmoles) of N1-phenyl-1,2-benzenediamine and 3.12 ml (17.9 mmoles) of diisopropylethylamine in 45 ml of anhydrous CH2Cl2 is added in one go. The reaction mixture is then heated for 5 hours at 60° C. After concentration to dryness under vacuum, the residue is divided between 50 ml of AcOEt and 50 ml of water. After stirring and decanting, the organic phase is washed successively with 50 ml of water and 50 ml of salt water. The organic solution is then dried over Na2SO4, filtered and concentrated under vacuum. The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2). Pink solid. After concentration to dryness under vacuum After stirring decanting the organic phase is washed successively with 50 ml of water and 50 ml of salt water The organic solution is then dried over Na2SO4 filtered concentrated under vacuum The evaporation residue is then purified on a silica column (eluent: Heptane/AcOEt: 1/2)

反応条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3.51 g (13.25 mmol) of Cbz-L-Leucine, 2.41 g (1 eq.) of (S)-2-amino-4-butyrolactone hydrobromide, 1.97 g of HOBT (1.1 eq.) and 5.59 g (2.2 eq.) of 1-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) are dissolved in 60 ml of anhydrous DMF, then 7.64 ml of (3.3 eq.) of N,N-diisopropylethylamine is added. The reaction mixture is stirred for 15 hours at 20° C. before being poured into 200 ml of a 1/1 mixture of ethyl acetate/water. After stirring and decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water. The organic phase is dried over sodium sulphate, filtered and concentrated to dryness under vacuum. The oil obtained is washed using isopentane and then crystallized from a dichloromethane/isopentane mixture. A white solid is obtained with a yield of 68%. Melting point: 130-131° C. After stirring decantation, the organic solution is washed successively with 100 ml of a saturated solution of NaHCO3, 50 ml of water, 100 ml of a 1M solution of citric acid and finally 100 ml of a solution of salt water The organic phase is dried over sodium sulphate filtered concentrated to dryness under vacuum The oil obtained is washed crystallized from a dichloromethane/isopentane mixture A white solid is obtained with a yield of 68%