Sodium Bicarbonate → HCID 59398239, compound

HRID 2193264Notes

Reaction equation

HRID 2193264 reaction equation
[CH3:1][C:2]1[C:3](=[O:15])[N:4]([CH2:12][CH:13]=O)[C:5]2[C:10]([CH:11]=1)=[CH:9][CH:8]=[CH:7][CH:6]=2.[O:16]1[C:21]2[CH:22]=[CH:23][C:24]([CH2:26][N:27]([CH:35]3[CH2:40][CH2:39][NH:38][CH2:37][CH2:36]3)[C:28](=[O:34])[O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[CH:25][C:20]=2[O:19][CH2:18][CH2:17]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>[O:16]1[C:21]2[CH:22]=[CH:23][C:24]([CH2:26][N:27]([CH:35]3[CH2:40][CH2:39][N:38]([CH2:13][CH2:12][N:4]4[C:5]5[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=5)[CH:11]=[C:2]([CH3:1])[C:3]4=[O:15])[CH2:37][CH2:36]3)[C:28](=[O:34])[O:29][C:30]([CH3:33])([CH3:31])[CH3:32])=[CH:25][C:20]=2[O:19][CH2:18][CH2:17]1

Participants

7

Reactant 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 57815320Tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(piperidin-4-yl)carbamateHCID 59398078HCID 59398078, compound

Product 1

HCID 59398239HCID 59398239, compoundYield 16.5%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 6212ChloroformSolvent

Procedure

To 25 mL of a chloroform solution containing 341 mg of (3-methyl-2-oxoquinolin-1(2H)-yl)acetaldehyde and 498 mg of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(piperidin-4-yl)carbamate, 80 μL of acetic acid was added, and stirred at room temperature for 1 hour. To the reaction mixture, 480 mg of sodium triacetoxyborohydride was added, and stirred for 1 hour. Aqueous saturated sodium hydrogen carbonate solution was added, the organic layer was separated. The organic layer was 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 [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60, eluent; chloroform:methanol=20:1], to give 126 mg of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(1-(2-(3-methyl-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-yl)carbamate as a white solid.

Workup

  1. additionwas added
  2. stirringstirred for 1 hour
  3. customthe organic layer was separated
  4. washThe organic layer was washed 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 [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60, eluent; chloroform:methanol=20:1]

Sources & evidence

ORD record
ord-b23d88fe54604307a51a1e8e000b9c39
Source dataset
uspto-grants-2012_12
Patent number
US08329694B2

Reaction notes

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