Triethylamine → (2R,4R)-2-[2-Fluoro-4-(2-oxo-piperidin-1-yl)-phenylcarbamoyl]-4-methoxy-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 1796288Notes

Reaction equation

HRID 1796288 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([O:13][CH3:14])[CH2:10][C@@H:9]1[C:15]([OH:17])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:18][C:19]1[CH:24]=[CH:23][C:22]([N:25]2[CH2:30][CH2:29][CH2:28][CH2:27][C:26]2=[O:31])=[CH:21][C:20]=1[F:32].CCOC1N(C(OCC)=O)C2C(=CC=CC=2)C=C1.C(N(CC)CC)C>C(Cl)(Cl)Cl.CCOC(C)=O>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([O:13][CH3:14])[CH2:10][C@@H:9]1[C:15](=[O:17])[NH:18][C:19]1[CH:24]=[CH:23][C:22]([N:25]2[CH2:30][CH2:29][CH2:28][CH2:27][C:26]2=[O:31])=[CH:21][C:20]=1[F:32])=[O:7])([CH3:2])([CH3:3])[CH3:4]

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 278332-Ethoxy-1-(ethoxycarbonyl)-1,2-dihydroquinolineHCID 11459222(2R,4R)-1-[(tert-butoxy)carbonyl]-4-methoxypyrrolidine-2-carboxylic acidHCID 117890101-(4-Amino-3-fluoro-phenyl)-piperidin-2-one

Product 1

HCID 11154790(2R,4R)-2-[2-Fluoro-4-(2-oxo-piperidin-1-yl)-phenylcarbamoyl]-4-methoxy-pyrrolidine-1-carboxylic acid tert-butyl ester

Reagents, catalysts & solvents 2

HCID 6212ChloroformSolventHCID 8857Ethyl AcetateSolvent

Procedure

Into a solution of 6 (0.250 g, 1.02 mmol) in CHCl3 (10 mL) was added 7 (0.212 g, 1.02 mmol), EEDQ (0.302 g, 1.22 mmol), and triethylamine (0.213 mL, 1.53 mmol). The solution was stirred at reflux for 19 h before cooling to RT and adding EtOAc. The solution was washed sequentially with 10% aq. citric acid, 1N NaOH, water, and brine, before drying over MgSO4 and concentrating under reduced pressure. The crude material was purified by flash chromatography to reveal 8 (0.329 g, 74%) as a tan foam. MS: APCI (AP+): 436.1 (M)+, (AP−): 434.1 (M)−.

Workup

  1. temperatureat reflux for 19 h
  2. washThe solution was washed sequentially with 10% aq. citric acid, 1N NaOH, water, and brine
  3. dry with materialbefore drying over MgSO4
  4. concentrationconcentrating under reduced pressure
  5. customThe crude material was purified by flash chromatography

Sources & evidence

ORD record
ord-5ea075a6600a4246859bb803c1e6503d
Source dataset
uspto-grants-2006_04
Patent number
US07030141B2

Reaction notes

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