Sodium Bicarbonate → HCID 59398327, compound

HRID 40025Notes

Reaction equation

HRID 40025 reaction equation
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][CH2:9][N:10]2[C:19]3[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][C:11]2=[O:22])[CH2:4][CH2:3]1.[Br:23][C:24]1[C:25]([CH:34]=O)=[CH:26][C:27]2[O:32][CH2:31][CH2:30][O:29][C:28]=2[CH:33]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(O)(=O)C.C(Cl)(Cl)Cl>[Br:23][C:24]1[C:25]([CH2:34][NH:1][CH:2]2[CH2:3][CH2:4][N:5]([CH2:8][CH2:9][N:10]3[C:19]4[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH3:21])[CH:18]=4)[N:13]=[CH:12][C:11]3=[O:22])[CH2:6][CH2:7]2)=[CH:26][C:27]2[O:32][CH2:31][CH2:30][O:29][C:28]=2[CH:33]=1

Participants

7

Reactant 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 141428207-Bromo-2,3-dihydro-1,4-benzodioxine-6-carbaldehydeHCID 593978381-[2-(4-Aminopiperidin-1-yl)ethyl]-7-methoxyquinoxalin-2(1H)-one

Product 1

HCID 59398327HCID 59398327, compoundYield 49.6%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 6212ChloroformSolvent

Procedure

To 10 mL of a chloroform solution containing 130 mg of 1-(2-(4-aminopiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one and 109 mg of 7-bromo-2,3-dihydro-1,4-benzodioxin-6-carbaldehyde, 25 μL of acetic acid was added, and stirred at room temperature for 1 hour. To the reaction mixture, 140 mg of sodium triacetoxyborohydride was added, and stirred for 1.5 hours. To the reaction mixture, aqueous saturated sodium hydrogen carbonate solution was added, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60, eluent; chloroform:methanol=10:1] to give 113 mg of 1-(2-(4-((7-bromo-2,3-dihydro-1,4-benzodioxin-6-yl)methylamino)piperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one as a pale yellow solid.

Workup

  1. additionwas added
  2. stirringstirred for 1.5 hours
  3. customthe solvent was removed under reduced pressure
  4. customThe residue thus obtained
  5. customwas purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60, eluent; chloroform:methanol=10:1]

Sources & evidence

ORD record
ord-92068b3d4c134345833e93a000a6d9be
Source dataset
uspto-grants-2013_09
Patent number
US08524738B2

Reaction notes

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