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Sodium Bicarbonate → tert-butyl (1-(2-(5-bromo-7-methoxy-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-yl)(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)carbamate

HRID 39778
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HRID 39778 반응식
[O:1]1[C:6]2[CH:7]=[CH:8][C:9]([CH2:11][N:12]([CH:20]3[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]3)[C:13](=[O:19])[O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[CH:10][C:5]=2[O:4][CH2:3][CH2:2]1.[Br:26][C:27]1[CH:36]=[C:35]([O:37][CH3:38])[CH:34]=[C:33]2[C:28]=1[CH:29]=[CH:30][C:31](=[O:42])[N:32]2[CH2:39][CH:40]=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(Cl)(Cl)Cl.C(O)(=O)C.ClCCl>[Br:26][C:27]1[CH:36]=[C:35]([O:37][CH3:38])[CH:34]=[C:33]2[C:28]=1[CH:29]=[CH:30][C:31](=[O:42])[N:32]2[CH2:39][CH2:40][N:23]1[CH2:24][CH2:25][CH:20]([N:12]([CH2:11][C:9]2[CH:8]=[CH:7][C:6]3[O:1][CH2:2][CH2:3][O:4][C:5]=3[CH:10]=2)[C:13](=[O:19])[O:14][C:15]([CH3:18])([CH3:16])[CH3:17])[CH2:21][CH2:22]1
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참가 물질

8

반응물 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 57815320Tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(piperidin-4-yl)carbamateHCID 59398112(5-bromo-7-methoxy-2-oxoquinolin-1(2H)-yl)acetaldehyde

생성물 1

HCID 59397948tert-butyl (1-(2-(5-bromo-7-methoxy-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-yl)(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)carbamate
수율 53.4%

시약·촉매·용매 3

HCID 176Acetic Acid용매HCID 6212Chloroform용매HCID 6344Dichloromethane용매

실험 절차

To 5 mL of dichloromethane solution containing 0.18 g of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(piperidin-4-yl)carbamate, 0.15 g of (5-bromo-7-methoxy-2-oxoquinolin-1(2H)-yl)acetaldehyde and 29 μL of acetic acid were added and stirred at room temperature for 1 hour. To the reaction mixture, 0.16 g of sodium triacetoxyborohydride was added and stirred at the same temperature for 30 min. Chloroform and aqueous saturated sodium hydrogen carbonate solution were added, the organic layer was separated, and the aqueous layer was extracted with chloroform. The organic layer and extracts were combined, washed sequentially with water and aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [eluent; ethyl acetate] to give 0.17 g of tert-butyl (1-(2-(5-bromo-7-methoxy-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-yl)(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)carbamate as a light brown foam.

후처리

  1. additionwere added
  2. stirringstirred at the same temperature for 30 min
  3. customthe organic layer was separated
  4. extractionthe aqueous layer was extracted with chloroform
  5. washwashed sequentially with water and aqueous saturated sodium chloride solution
  6. dry with materialdried over anhydrous magnesium sulfate
  7. customthe solvent was removed under reduced pressure
  8. customThe residue thus obtained
  9. customwas purified by silica gel column chromatography [eluent; ethyl acetate]

출처 및 근거

ORD 기록
ord-e687be028103402cb920b56faa234dda
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08524738B2

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