Sodium Hydroxide → 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(phenylthio)ethyl)piperidine-4-carboxylic acid

HRID 2193175Notes

Reaction equation

HRID 2193175 reaction equation
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([CH:7]=[CH:8][C:9](=[O:36])[N:10]2[CH2:13][CH2:14][CH2:15][C:16]2([C:31]([O:33]CC)=[O:32])[CH2:21][CH2:20][N:19]([CH2:22][CH2:23][S:24][C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[CH2:18][CH2:17]2)=[CH:5][CH:4]=1.[OH-].[Na+]>C(O)C>[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([CH:7]=[CH:8][C:9](=[O:36])[N:10]2[CH2:13][CH2:14][CH2:15][C:16]2([C:31]([OH:33])=[O:32])[CH2:17][CH2:18][N:19]([CH2:22][CH2:23][S:24][C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[CH2:20][CH2:21]2)=[CH:5][CH:4]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 59397952ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(phenylthio)ethyl)piperidine-4-carboxylate

Product 1

HCID 593979514-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(phenylthio)ethyl)piperidine-4-carboxylic acidYield 29.4%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To 1.5 mL of an ethanol solution containing 90 mg of ethyl 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(phenylthio)ethyl)piperidine-4-carboxylate, 0.5 mL of 20% aqueous sodium hydroxide solution was added and refluxed with heating for 3 hours and 10 min. After the reaction mixture was cooled to room temperature, the solvent was removed under reduced pressure, water was added, and adjusted to pH 6.5 with 6.0 mol/L hydrochloric acid. The resulting solid was filtered to give 25 mg of 4-(3-(7-methoxy-2-oxoquinolin-1(2H)-yl)propyl)-1-(2-(phenylthio)ethyl)piperidine-4-carboxylic acid as a pale yellow solid.

Workup

  1. additionwas added
  2. temperaturerefluxed
  3. temperaturewith heating for 3 hours and 10 min
  4. customthe solvent was removed under reduced pressure, water
  5. additionwas added
  6. filtrationThe resulting solid was filtered

Sources & evidence

ORD record
ord-5ea7980c255241788954811f28d243d4
Source dataset
uspto-grants-2012_12
Patent number
US08329694B2

Reaction notes

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