Triethylamine → tert-butyl (6R,7R)-7-(4-chloro-3-fluorophenyl)-6-{[(methoxyacetyl)amino]methyl}-1,4-oxazepane-4-carboxylate

HRID 1022626

Reaction equation

HRID 1022626 reaction equation
[NH2:1][CH2:2][C@H:3]1[C@H:9]([C:10]2[CH:15]=[CH:14][C:13]([Cl:16])=[C:12]([F:17])[CH:11]=2)[O:8][CH2:7][CH2:6][N:5]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:4]1.C(N(CC)CC)C.[CH3:32][O:33][CH2:34][C:35](Cl)=[O:36]>C1COCC1>[Cl:16][C:13]1[CH:14]=[CH:15][C:10]([C@@H:9]2[O:8][CH2:7][CH2:6][N:5]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:4][C@H:3]2[CH2:2][NH:1][C:35](=[O:36])[CH2:34][O:33][CH3:32])=[CH:11][C:12]=1[F:17]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 96623Methoxyacetyl chlorideHCID 66975002tert-butyl (6R,7R)-6-(aminomethyl)-7-(4-chloro-3-fluorophenyl)-1,4-oxazepane-4-carboxylate

Product 1

HCID 66975283tert-butyl (6R,7R)-7-(4-chloro-3-fluorophenyl)-6-{[(methoxyacetyl)amino]methyl}-1,4-oxazepane-4-carboxylateYield 71.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of tert-butyl (6R,7R)-6-(aminomethyl)-7-(4-chloro-3-fluorophenyl)-1,4-oxazepane-4-carboxylate (1.30 g) in THF (18 mL) were added triethylamine (0.757 ml) and methoxyacetyl chloride (472 mg), and the mixture was stirred at room temperature for 4 hr. To the reaction mixture was added distilled water, and the mixture was extracted with ethyl acetate. The diluted solution was washed with distilled water and brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel chromatography (hexane/ethyl acetate) to give the title compound (1.11 g).

Workup

  1. additionTo the reaction mixture was added
  2. distillationdistilled water
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe diluted solution was washed with distilled water and brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customThe residue was purified by silica gel chromatography (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-da2c08cff5884fc2898eb18c58cfd536
Source dataset
uspto-grants-2014_05
Patent number
US08722662B2

Linked notes

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