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1,2-Dichloroethane → (R)-tert-butyl 1-amino-3-(benzyloxy)-1-oxopropan-2-ylcarbamate

HRID 84818
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HRID 84818 반응식
[C:1]([NH:8][C@@H:9]([C:19]([OH:21])=O)[CH2:10][O:11][CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].C1C=C2[N:28]=NN(O)C2=CC=1.O.C(Cl)CCl.[NH4+].[OH-]>CN(C=O)C.CCOC(C)=O.O>[NH2:28][C:19](=[O:21])[C@H:9]([NH:8][C:1](=[O:2])[O:3][C:4]([CH3:7])([CH3:6])[CH3:5])[CH2:10][O:11][CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1
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참가 물질

8

반응물 4

HCID 111,2-DichloroethaneHCID 14923Ammonium HydroxideHCID 2733693(R)-3-(benzyloxy)-2-((tert-butoxycarbonyl)amino)propanoic acidHCID 27960291-Hydroxybenzotriazole hydrate

생성물 1

HCID 7216902(R)-tert-butyl 1-amino-3-(benzyloxy)-1-oxopropan-2-ylcarbamate수율 87.7%

시약·촉매·용매 3

HCID 962
Water
용매
HCID 6228Dimethylformamide용매
HCID 8857Ethyl Acetate용매

실험 절차

To a solution of N-Boc-O-benzyl-D-serine (510 mg, 1.72 mmol) and HOBt hydrate (317 mg, 2.07 mmol) in DMF (9 mL), EDC (432 mg, 2.25 mmol) was added. The mixture was stirred for 60 min. Then conc. NH4OH (0.600 mL, ˜8.40 mmol) was added. It was stirred for 18 h. Water and EtOAc were added. The organic phase was separated, washed with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give (R)-tert-butyl 1-amino-3-(benzyloxy)-1-oxopropan-2-ylcarbamate (444 mg).

후처리

  1. stirringIt was stirred for 18 h
  2. customThe organic phase was separated
  3. washwashed with 5% NaHCO3
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-ddf4c04ba92f454da8ae31c93bb82873
출처 데이터셋
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08846928B2

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