Hydrochloric Acid → tert-butyl 4-{[(2R)-2-(benzyloxy)propanoyl]amino}piperidine-1-carboxylate

HRID 1026541노트

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HRID 1026541 반응식
[CH2:1]([O:8][C@H:9]([CH3:13])[C:10]([OH:12])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:14][CH:15]1[CH2:20][CH2:19][N:18]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:17][CH2:16]1.Cl.C(N=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1.Cl>ClCCl>[CH2:1]([O:8][C@H:9]([CH3:13])[C:10]([NH:14][CH:15]1[CH2:16][CH2:17][N:18]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:19][CH2:20]1)=[O:12])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

7

반응물 5

HCID 313Hydrochloric AcidHCID 12682914-Amino-1-Boc-piperidineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 7000104(2R)-2-phenylmethoxypropanoic acid

생성물 1

HCID 52331793tert-butyl 4-{[(2R)-2-(benzyloxy)propanoyl]amino}piperidine-1-carboxylate수율 96.2%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a dichloromethane solution (1000 ml) of (2R)-2-(benzyloxy)propionic acid (51.7 g) and tert-butyl 4-aminopiperidine-1-carboxylate (63.2 g) were added at room temperature 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (60.5 g) and 1-hydroxybenzotriazole monohydrate (42.7 g), followed by stirring overnight. The reaction solution was poured into a 0.5 N aqueous hydrochloric acid solution, and extracted with dichloromethane. The organic layer was washed sequentially with water, a saturated aqueous sodium hydrogen carbonate solution, water and saturated sodium chloride solution, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to afford tert-butyl 4-{[(2R)-2-(benzyloxy)propanoyl]amino}piperidine-1-carboxylate (100 g).

후처리

  1. extractionextracted with dichloromethane
  2. washThe organic layer was washed sequentially with water
  3. dry with materiala saturated aqueous sodium hydrogen carbonate solution, water and saturated sodium chloride solution, dried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-6f93400e3e4f4c49a26fafeab9214aec
출처 데이터셋
uspto-grants-2014_05
특허 번호
US08729095B2

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