Potassium Carbonate → 1-Acetyl-6-bromo-2-({3-[piperazin-yl]azetidin-1-yl}carbonyl)-1,2,3,4-tetrahydroquinoline

HRID 401652Notes

Reaction equation

HRID 401652 reaction equation
[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([Br:14])=[CH:11][CH:12]=2)[CH2:7][CH2:6][CH:5]1[C:15]([N:17]1[CH2:20][CH:19]([N:21]2[CH2:26][CH2:25][N:24](C(=O)C(F)(F)F)[CH2:23][CH2:22]2)[CH2:18]1)=[O:16])(=[O:3])[CH3:2].C([O-])([O-])=O.[K+].[K+]>CO>[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([Br:14])=[CH:11][CH:12]=2)[CH2:7][CH2:6][CH:5]1[C:15]([N:17]1[CH2:20][CH:19]([N:21]2[CH2:22][CH2:23][NH:24][CH2:25][CH2:26]2)[CH2:18]1)=[O:16])(=[O:3])[CH3:2]

Participants

4

Reactant 2

HCID 11430Potassium CarbonateHCID 596259251-Acetyl-6-bromo-2-({3-[4-(trifluoroacetyl)piperazin-1-yl]azetidin-1-yl}carbonyl)-1,2,3,4-tetrahydroquinoline

Product 1

HCID 596259321-Acetyl-6-bromo-2-({3-[piperazin-yl]azetidin-1-yl}carbonyl)-1,2,3,4-tetrahydroquinolineYield 74.3%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of compound 25d (261 mg, 0.505 mmol) in MeOH (3 mL) was added K2CO3 (140 mg, 1.01 mmol). The reaction mixture was stirred at room temperature for 30 min. The resultant mixture was filtered, the filtrate concentrated under reduced pressure, and the resultant residue partitioned between CH2Cl2 and H2O. The organic phase was dried over Na2SO4, filtered, and concentrated under reduced pressure to give compound 25e (158 mg). LC/MS m/z (M+H+) 421.0, (M+2H+) 423.0.

Workup

  1. filtrationThe resultant mixture was filtered
  2. concentrationthe filtrate concentrated under reduced pressure
  3. customthe resultant residue partitioned between CH2Cl2 and H2O
  4. dry with materialThe organic phase was dried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-b02d503e59114c0d8c05c0c5aed650da
Source dataset
uspto-grants-2014_06
Patent number
US08741887B2

Reaction notes

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