Hydrochloric Acid → 8-Fluoro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-7-carboxylic acid

HRID 1801191Notes

Reaction equation

HRID 1801191 reaction equation
C[O:2][C:3]([C:5]1[C:14]([F:15])=[C:13]2[C:8]([CH2:9][C:10]([CH3:29])([CH3:28])[CH:11]([C:16]3[CH:21]=[CH:20][CH:19]=[C:18]([N:22]4[CH2:27][CH2:26][O:25][CH2:24][CH2:23]4)[CH:17]=3)[NH:12]2)=[CH:7][CH:6]=1)=[O:4].[OH-].[Na+].Cl>CO.O1CCCC1.O>[F:15][C:14]1[C:5]([C:3]([OH:4])=[O:2])=[CH:6][CH:7]=[C:8]2[C:13]=1[NH:12][CH:11]([C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([N:22]3[CH2:27][CH2:26][O:25][CH2:24][CH2:23]3)[CH:17]=1)[C:10]([CH3:28])([CH3:29])[CH2:9]2

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 674434848-Fluoro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-7-carboxylic acid methyl ester

Product 1

HCID 584762778-Fluoro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-7-carboxylic acidYield 90%

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
70 °C

Procedure

To a stirred mixture solution of 8-fluoro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-7-carboxylic acid methyl ester (400 mg, 1.0 mmol) in methanol (5.0 mL) and tetrahydrofuran (5.0 mL) was added 50% sodium hydroxide in water (1.0 mL). The reaction mixture was stirred at 70° C. for 6 hours. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×100 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water) afforded 8-fluoro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-7-carboxylic acid (345 mg, 90%) as a light yellow solid: LC/MS m/e calcd for C22H25FN2O3 (M+H)+: 385.45, observed: 385.1.

Workup

  1. extractionextracted with ethyl acetate (2×100 mL)
  2. washwashed with water
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customPurification by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water)

Sources & evidence

ORD record
ord-0947beaf5e0f473a82bdd4dff7cf5c76
Source dataset
uspto-grants-2013_01
Patent number
US08344137B2

Reaction notes

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