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1,2-Dichloroethane → (R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate

HRID 84891
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HRID 84891 반응식
[C:1]([NH:8][C@@H:9]([C:16]([OH:18])=O)[CH2:10][C:11]1[S:12][CH:13]=[CH:14][CH:15]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].C1C=C2[N:25]=NN(O)C2=CC=1.O.C(Cl)CCl.[NH4+].[OH-]>CN(C=O)C.CCOC(C)=O.O>[NH2:25][C:16](=[O:18])[C@H:9]([NH:8][C:1](=[O:2])[O:3][C:4]([CH3:7])([CH3:6])[CH3:5])[CH2:10][C:11]1[S:12][CH:13]=[CH:14][CH:15]=1
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참가 물질

8

반응물 4

HCID 111,2-DichloroethaneHCID 14923Ammonium HydroxideHCID 27960291-Hydroxybenzotriazole hydrateHCID 7017898Boc-D-2-thienylalanine

생성물 1

HCID 67776928(R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate수율 90.3%

시약·촉매·용매 3

HCID 962
Water
용매
HCID 6228Dimethylformamide용매
HCID 8857Ethyl Acetate용매

실험 절차

A solution of N-Boc-β-(2-thienyl)-D-alanine (504 mg, 1.86 mmol), HOBt monohydrate (340 mg, 2.22 mmol) and EDC (460 mg, 2.39 mmol) in DMF (6 mL) was stirred at room temperature for 1 h, conc. NH4OH (0.600 mL, ca. 8.40 mmol) was added. The mixture 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-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate (454 mg)

후처리

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

출처 및 근거

ORD 기록
ord-785ace013d7d46d6a2ff2f96a8ceaa4d
출처 데이터셋
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08846928B2

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