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1,2-Dichloroethane → cyclopentyl(2S)-2-[(tert-butoxycarbonyl)amino]pent-4-ynoate

HRID 425029
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HRID 425029 반응식
[CH3:1][C:2]([O:5][C:6]([NH:8][C@H:9]([C:13]([OH:15])=[O:14])[CH2:10][C:11]#[CH:12])=[O:7])([CH3:4])[CH3:3].[CH:16]1(O)[CH2:20][CH2:19][CH2:18][CH2:17]1.C(Cl)CCl>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:2]([O:5][C:6]([NH:8][C@@H:9]([CH2:10][C:11]#[CH:12])[C:13]([O:15][CH:16]1[CH2:20][CH2:19][CH2:18][CH2:17]1)=[O:14])=[O:7])([CH3:1])([CH3:3])[CH3:4]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 111,2-DichloroethaneHCID 7298CyclopentanolHCID 2734488(2S)-2-{[(tert-butoxy)carbonyl]amino}pent-4-ynoic acid

생성물 1

HCID 59243606cyclopentyl(2S)-2-[(tert-butoxycarbonyl)amino]pent-4-ynoate수율 83%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매
HCID 6344
Dichloromethane
용매

실험 절차

To a solution of Boc-L-propargyl glycine (5 g, 23.45 mmol) in DCM (100 ml) was added cyclopentanol (3.03 g, 35.2 mmol), EDC (4.93 g, 25.8 mmol) and DMAP (0.286 g, 2.345 mmol). The mixture was stirred overnight at RT. The solvent was removed under reduced pressure and the residue was subjected to column chromatography eluting with 7 to 12% EtOAc in hexanes. Yield=5.5 g, 19.55 mmol, 83% yield.

후처리

  1. customThe solvent was removed under reduced pressure
  2. washeluting with 7 to 12% EtOAc in hexanes

출처 및 근거

ORD 기록
ord-08b3bbf783e44372bbe0a66aadeaf06a
출처 데이터셋
uspto-grants-2012_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08106091B2

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