Dimethylformamide → ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(2-thienylthio)ethyl)piperidine-4-carboxylate

HRID 2193172Notes

Reaction equation

HRID 2193172 reaction equation
CN(C)C=O.[CH3:6][O:7][C:8]1[CH:17]=[C:16]2[C:11]([CH:12]=[CH:13][C:14](=[O:32])[N:15]2[CH2:18][CH2:19][CH2:20][C:21]2([C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]2)=[CH:10][CH:9]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:40][CH2:41][S:42][C:43]1[S:44][CH:45]=[CH:46][CH:47]=1>O.C(OCC)(=O)C>[CH3:6][O:7][C:8]1[CH:17]=[C:16]2[C:11]([CH:12]=[CH:13][C:14](=[O:32])[N:15]2[CH2:18][CH2:19][CH2:20][C:21]2([C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:26][CH2:25][N:24]([CH2:40][CH2:41][S:42][C:43]3[S:44][CH:45]=[CH:46][CH:47]=3)[CH2:23][CH2:22]2)=[CH:10][CH:9]=1

Participants

7

Reactant 4

HCID 6228Dimethylformamide2×HCID 11430Potassium CarbonateHCID 122011192-(2-Bromoethylthio)-thiopheneHCID 59398137ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)piperidine-4-carboxylate

Product 1

HCID 59398305ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(2-thienylthio)ethyl)piperidine-4-carboxylate

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

To 1.25 mL of an N,N-dimethylformamide solution containing 70 mg of ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)piperidine-4-carboxylate, 57 mg of potassium carbonate and 0.25 mL of N,N-dimethylformamide containing 47 mg of 2-(2-bromoethylthio)thiophene were added at room temperature, and stirred at 60°C. for 3 hours. To the reaction mixture, ethyl acetate and water were added. The organic layer was separated, 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; chloroform:methanol=10:1], to give 91 mg of ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(2-thienylthio)ethyl)piperidine-4-carboxylate as a yellow oil.

Workup

  1. additionwere added at room temperature
  2. customThe organic layer was separated
  3. washwashed sequentially with water and aqueous saturated sodium chloride solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was removed under reduced pressure
  6. customThe residue thus obtained
  7. customwas purified by silica gel column chromatography [eluent; chloroform:methanol=10:1]

Sources & evidence

ORD record
ord-9ca3d04991374308a07410e7ce76b3b5
Source dataset
uspto-grants-2012_12
Patent number
US08329694B2

Reaction notes

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