Morpholine → HCID 67442022, compound

HRID 1801149Notes

Reaction equation

HRID 1801149 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:17]=[N:18][CH:19]=[C:20](Br)[CH:21]=1)[C:10]([CH3:24])([CH3:23])[CH2:9]2)=[O:5])[CH3:2].[NH:25]1[CH2:30][CH2:29][O:28][CH2:27][CH2:26]1.Cl.CN(C)CC(O)=O.C(=O)([O-])[O-].[K+].[K+]>CS(C)=O.[Cu]I>[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:17]=[N:18][CH:19]=[C:20]([N:25]3[CH2:30][CH2:29][O:28][CH2:27][CH2:26]3)[CH:21]=1)[C:10]([CH3:24])([CH3:23])[CH2:9]2)=[O:5])[CH3:2]

Participants

7

Reactant 4

HCID 8083MorpholineHCID 11430Potassium CarbonateHCID 75605N,N-Dimethylglycine hydrochlorideHCID 674409002-(5-Bromo-pyridin-3-yl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester

Product 1

HCID 67442022HCID 67442022, compoundYield 40.4%

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-(5-bromo-pyridin-3-yl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (8.5 g, 21.94 mmol), morpholine (19.1 mL, 219.3 mmol), copper(I) iodide (1.7 g, 8.8 mmol), N,N-dimethylglycine hydrochloride (2.5 g, 17.5 mmol) and potassium carbonate (9.1 g, 65.8 mmol) in dimethyl sulfoxide (35 mL) was stirred at 120° C. for 16 h. Then the reaction mixture cooled to room temperature. The reaction mixture was extracted with ethyl acetate (2×150 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 3,3-dimethyl-2-(5-morpholin-4-yl-pyridin-3-yl)-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (3.5 g, 40.4%) as a white solid which was used for next step without further purification: LC/MS m/e calcd for C23H29N3O3 (M+H)+: 396.53, observed: 396.1.

Workup

  1. temperatureThen the reaction mixture cooled to room temperature
  2. extractionThe reaction mixture was extracted with ethyl acetate (2×150 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-26d7e5c821bc46bb966a7f393476909d
Source dataset
uspto-grants-2013_01
Patent number
US08344137B2

Reaction notes

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