Pyridine → (S)-N-[3-[3-Fluoro-4-aminophenyl]-2-oxo-5-oxazolidinyl]methylacetamide

HRID 2305653ノート

反応式

HRID 2305653 の反応式
[C:1](OC(=O)C)(=[O:3])[CH3:2].[NH2:8][CH2:9][C@@H:10]1[O:14][C:13](=[O:15])[N:12]([C:16]2[CH:21]=[CH:20][C:19]([NH:22]C(OC(C)(C)C)=O)=[C:18]([F:30])[CH:17]=2)[CH2:11]1.N1C=CC=CC=1>C(Cl)Cl>[C:1]([NH:8][CH2:9][C@@H:10]1[O:14][C:13](=[O:15])[N:12]([C:16]2[CH:21]=[CH:20][C:19]([NH2:22])=[C:18]([F:30])[CH:17]=2)[CH2:11]1)(=[O:3])[CH3:2]

参加物

5

反応物 3

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 229662035-(S)-aminomethyl-3-[4'-(tert-butoxycarbonyl)amino-3'-fluorophenyl]oxazolidine-2-one

生成物 1

HCID 10778218(S)-N-[3-[3-Fluoro-4-aminophenyl]-2-oxo-5-oxazolidinyl]methylacetamide

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

Acetic anhydride (0.15 mL) was added to a solution of 5-(S)-aminomethyl-3-[4′-(tert-butoxycarbonyl)amino-3′-fluorophenyl]oxazolidine-2-one (0.325 g, 1.0 mmol) and pyridine (0.25 mL) in DCM (4.0 mL). The mixture was stirred at r.t. for 4 h, and solvent was removed under vacuum. The resulted 5-(S)-acetamidomethyl-3-[4′-(tert-butoxycarbonyl)amino-3′-fluorophenyl]oxazoli-dine-2-one was washed with water (2×3 mL), diethyl ether (3 mL), and dried under vacuum. 50% TFA in DCM (3 mL) was added, and the mixture was kept at r.t. for 1 h. Solvents were removed under vacuum, and the residue distributed between ethyl acetate (40 mL) and saturated aq. sodium bicarbonate (20 mL). Organic layer was washed with aq. sodium bicarbonate, water, brine, dried (MgSO4). Solvent was removed under vacuum to afford the product as a white solid. Yield 0.25 g (95%). MS (m/z): [M+H]+=268.

後処理

  1. customsolvent was removed under vacuum
  2. washThe resulted 5-(S)-acetamidomethyl-3-[4′-(tert-butoxycarbonyl)amino-3′-fluorophenyl]oxazoli-dine-2-one was washed with water (2×3 mL), diethyl ether (3 mL)
  3. customdried under vacuum
  4. addition50% TFA in DCM (3 mL) was added
  5. waitthe mixture was kept at r.t. for 1 h
  6. customSolvents were removed under vacuum
  7. washOrganic layer was washed with aq. sodium bicarbonate, water, brine
  8. dry with materialdried (MgSO4)
  9. customSolvent was removed under vacuum

出典と根拠

ORDレコード
ord-c4dc0eef2b2c4dd2b0e7bd0c7e1e51fc
出典データセット
uspto-grants-2002_08
特許番号
US06441005B1

反応ノート

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