Ethanol → 1-(2-(4-((2,3-Dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-4-carboxylic acid

HRID 39770Notes

Reaction equation

HRID 39770 reaction equation
C(O)C.[O:4]1[C:9]2[CH:10]=[CH:11][C:12]([CH2:14][NH:15][CH:16]3[CH2:21][CH2:20][N:19]([CH2:22][CH2:23][N:24]4[C:33]5[C:28](=[CH:29][CH:30]=[C:31]([O:34][CH3:35])[CH:32]=5)[C:27]([C:36]([O:38]C)=[O:37])=[CH:26][C:25]4=[O:40])[CH2:18][CH2:17]3)=[CH:13][C:8]=2[O:7][CH2:6][CH2:5]1.[OH-].[Na+]>O>[O:4]1[C:9]2[CH:10]=[CH:11][C:12]([CH2:14][NH:15][CH:16]3[CH2:17][CH2:18][N:19]([CH2:22][CH2:23][N:24]4[C:33]5[C:28](=[CH:29][CH:30]=[C:31]([O:34][CH3:35])[CH:32]=5)[C:27]([C:36]([OH:38])=[O:37])=[CH:26][C:25]4=[O:40])[CH2:20][CH2:21]3)=[CH:13][C:8]=2[O:7][CH2:6][CH2:5]1

Participants

5

Reactant 3

HCID 702EthanolHCID 14798Sodium HydroxideHCID 59398228Methyl 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-4-carboxylate

Product 1

HCID 593980491-(2-(4-((2,3-Dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-4-carboxylic acidYield 34.3%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To 1 mL of an ethanol solution containing 0.12 g of methyl 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-4-carboxylate, 0.5 mL of 5 mol/L aqueous sodium hydroxide solution was added and stirred for 1 hour. 2 mL of water was added, removed ethanol under reduced pressure, adjusted to pH 6.0 with 6 mol/L hydrochloric acid, and the resulting solid was filtered to afford 40 mg of 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-4-carboxylic acid as a white solid.

Workup

  1. additionwas added
  2. customremoved ethanol under reduced pressure
  3. filtrationthe resulting solid was filtered

Sources & evidence

ORD record
ord-9c5db4efc7294c21b0c7df747602b487
Source dataset
uspto-grants-2013_09
Patent number
US08524738B2

Reaction notes

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