Sodium Bicarbonate → ethyl 1-(2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)-4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)piperidine-4-carboxylate

HRID 39796

Reaktionsgleichung

Reaktionsgleichung von HRID 39796
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([CH:7]=[CH:8][C:9](=[O:27])[N:10]2[CH2:13][CH2:14][CH2:15][C:16]2([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]2)=[CH:5][CH:4]=1.[O:28]1[C:37]2[CH:36]=[C:35]([CH:38]=O)[N:34]=[CH:33][C:32]=2[O:31][CH2:30][CH2:29]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(Cl)(Cl)Cl.O.C(O)(=O)C.ClCCl>[O:28]1[C:37]2[CH:36]=[C:35]([CH2:38][N:19]3[CH2:20][CH2:21][C:16]([CH2:15][CH2:14][CH2:13][N:10]4[C:11]5[C:6](=[CH:5][CH:4]=[C:3]([O:2][CH3:1])[CH:12]=5)[CH:7]=[CH:8][C:9]4=[O:27])([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:17][CH2:18]3)[N:34]=[CH:33][C:32]=2[O:31][CH2:30][CH2:29]1

Komponenten

9

Edukt 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 218736682,3-Dihydro[1,4]dioxino[2,3-c]pyridine-7-carbaldehydeHCID 59398137ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)piperidine-4-carboxylate

Produkt 1

HCID 59398233ethyl 1-(2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)-4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)piperidine-4-carboxylateAusbeute 58 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 176Acetic AcidLösungsmittelHCID 962WaterLösungsmittelHCID 6212ChloroformLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To 2 mL of dichloromethane solution containing 80 mg of ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)piperidine-4-carboxylate, 41 mg of 2,3-dihydro(1,4)dioxino(2,3-c)pyridine-7-carbaldehyde and 14 μL of acetic acid were added at room temperature, 78 mg of sodium triacetoxyborohydride was added under ice-cooling, and stirred at room temperature for 1 hour. To the reaction mixture, water, chloroform and aqueous saturated sodium hydrogen carbonate solution were added. The organic layer was separated, washed with 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; chloroform:methanol=20:1], to give 65 mg of ethyl 1-(2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)-4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)piperidine-4-carboxylate as a yellow oil.

Aufarbeitung

  1. additionwere added at room temperature
  2. temperaturecooling
  3. customThe organic layer was separated
  4. washwashed with aqueous saturated sodium chloride solution
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was removed under reduced pressure
  7. customThe residue thus obtained
  8. customwas purified by silica gel column chromatography [eluent; chloroform:methanol=20:1]

Quellen und Nachweise

ORD-Eintrag
ord-a11b4287d4c743a791fa5879b2cab3bd
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08524738B2

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