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1,2-Dichloroethane → cis (+/-)-1-Benzyl 3-methyl 5-(tert-butoxycarbonylamino)piperidine-1,3-dicarboxylate

HRID 1920182
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HRID 1920182 반응식
[CH2:1]([O:8][C:9]([N:11]1[CH2:16][C@H:15]([NH:17][C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][C@H:13]([C:25]([OH:27])=[O:26])[CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CO.[CH2:30](Cl)CCl.CN(C1C=CC=CN=1)C>ClCCl>[C:21]([O:20][C:18]([NH:17][C@H:15]1[CH2:16][N:11]([C:9]([O:8][CH2:1][C:2]2[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=2)=[O:10])[CH2:12][C@@H:13]([C:25]([O:27][CH3:30])=[O:26])[CH2:14]1)=[O:19])([CH3:23])([CH3:24])[CH3:22]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 111,2-DichloroethaneHCID 887MethanolHCID 218852-DimethylaminopyridineHCID 86656441HCID 86656441, 화합물

생성물 1

HCID 95731685cis (+/-)-1-Benzyl 3-methyl 5-(tert-butoxycarbonylamino)piperidine-1,3-dicarboxylate

시약·촉매·용매 1

HCID 6344Dichloromethane
용매

실험 절차

To a solution of cis(+/−)-1-(benzyloxycarbonyl)-5-(tert-butoxycarbonylamino)piperidine-3-carboxylic acid (1.0 eq), methanol (20 eq.) and EDC (1.3 eq) in dichloromethane at a concentration of 0.25 M at 0° C. was added dimethylaminopyridine (0.1 eq). After stirring for 48 hours as the reaction was allowed to warm to rt the volatiles were removed in vacuo. Upon addition of ethyl acetate and washing with H2O (3×), 1N HCl, NaHCO3(sat.) and brine, the solution was dried over MgSO4, filtered, concentrated and purified by column chromatography (25% ethyl acetate/hexanes) to yield cis(+/−)-1-benzyl 3-methyl 5-(tert-butoxycarbonylamino)-piperidine-1,3-dicarboxylate. LCMS (m/z): 293.1 (MH-Boc+); LC Rt=4.09 min

후처리

  1. customwere removed in vacuo
  2. additionUpon addition of ethyl acetate
  3. washwashing with H2O (3×), 1N HCl, NaHCO3(sat.) and brine
  4. dry with materialthe solution was dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. custompurified by column chromatography (25% ethyl acetate/hexanes)

출처 및 근거

ORD 기록
ord-bdb60825c0df41b0b7f94f6d8023648e
출처 데이터셋
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08168794B2

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