Potassium Carbonate → 2-[3-(3-Fluoro-azetidin-1-yl)-phenyl]-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid

HRID 2045508Notes

Reaction equation

HRID 2045508 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH:8]2[C:17]([CH3:19])([CH3:18])[CH2:16][C:15]3[C:10](=[CH:11][CH:12]=[C:13]([C:20]([OH:22])=[O:21])[CH:14]=3)[NH:9]2)[CH:5]=[CH:6][CH:7]=1.[F:23][CH:24]1[CH2:27][NH:26][CH2:25]1.Cl.CN(C)CC(O)=O.C(=O)([O-])[O-].[K+].[K+]>CS(C)=O.[Cu]I>[F:23][CH:24]1[CH2:27][N:26]([C:2]2[CH:3]=[C:4]([CH:8]3[C:17]([CH3:19])([CH3:18])[CH2:16][C:15]4[C:10](=[CH:11][CH:12]=[C:13]([C:20]([OH:22])=[O:21])[CH:14]=4)[NH:9]3)[CH:5]=[CH:6][CH:7]=2)[CH2:25]1

Participants

7

Reactant 4

HCID 11430Potassium CarbonateHCID 75605N,N-Dimethylglycine hydrochlorideHCID 36035423-FluoroazetidineHCID 584761942-(3-Bromophenyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoline-6-carboxylic acid

Product 1

HCID 674413362-[3-(3-Fluoro-azetidin-1-yl)-phenyl]-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acidYield 80%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
120 °C

Procedure

A mixture of 2-(3-bromo-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (1.2 g, 3.3 mmol), 3-fluoro-azetidine (740 mg, 6.6 mmol), copper(I) iodide (190 mg, 1.0 mmol), N,N-dimethylglycine hydrochloride (280 mg, 2.0 mmol) and potassium carbonate (1.8 g, 13.2 mmol) in dimethyl sulfoxide (10 mL) was stirred at 120° C. for 16 hours. Then the reaction mixture cooled to room temperature. The reaction mixture was extracted with ethyl acetate (2×200 mL), washed with water (2×50 mL) and saturated aqueous ammonium chloride solution (2×50 mL), dried over anhydrous sodium sulfate and then concentrated in vacuo to afford 2-[3-(3-fluoro-azetidin-1-yl)-phenyl]-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (934 mg, 80%) as a light yellow oil which was used for next step without further purification: LC/MS m/e calcd for C21H23FN2O2 (M+H)+: 355.43, observed: 355.1.

Workup

  1. temperatureThen the reaction mixture cooled to room temperature
  2. extractionThe reaction mixture was extracted with ethyl acetate (2×200 mL)
  3. washwashed with water (2×50 mL) and saturated aqueous ammonium chloride solution (2×50 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-cdffcc96bbb44922a19bb85d092721a4
Source dataset
uspto-grants-2013_11
Patent number
US08586747B2

Reaction notes

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