2-Bromopropane → HCID 57494028, compound

HRID 2353143Notes

Reaction equation

HRID 2353143 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][CH2:15][CH2:16][O:17][CH3:18])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Br[CH:20]([CH3:22])[CH3:21].C(=O)([O-])[O-].[K+].[K+]>CC#N.C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][CH:11]([N:14]([CH:20]([CH3:22])[CH3:21])[CH2:15][CH2:16][O:17][CH3:18])[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 3

HCID 63582-BromopropaneHCID 11430Potassium CarbonateHCID 43652134tert-Butyl 4-[(2-methoxyethyl)amino]piperidine-1-carboxylate

Product 1

HCID 57494028HCID 57494028, compound

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
60 °C

Procedure

Amine preparation: A mixture of 4-(2-methoxy-ethylamino)-piperidine-1-carboxylic acid tert-butyl ester (see preparation of 121) (300 mg) and 2-bromopropane (1.20 mL) in MeCN (3 mL) with potassium carbonate (192 mg) were heated at 60° C. in a sealed tube for 7 days. The reaction mixture was cooled down, diluted with DCM, washed with brine, dried (MgSO4) and the solvent removed in vacuo. The residue was purified using flash chromatography to yield 4-[isopropyl-(2-methoxy-ethyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester as an oil (131 mg). Treatment of this compound with HCl in DCM/MeOH and basic wash with aqueous sodium bicarbonate yielded the desired amine.

Workup

  1. temperatureThe reaction mixture was cooled down
  2. washwashed with brine
  3. dry with materialdried (MgSO4)
  4. customthe solvent removed in vacuo
  5. customThe residue was purified

Sources & evidence

ORD record
ord-cdeea0737fe74670913b4433cf76a065
Source dataset
uspto-grants-2010_07
Patent number
US07750002B2

Reaction notes

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