(R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate → (R)-2-amino-3-(thiophen-2-yl)propanamide

HRID 84892ノート

反応式

HRID 84892 の反応式
[NH2:1][C:2](=[O:18])[C@H:3]([NH:10]C(=O)OC(C)(C)C)[CH2:4][C:5]1[S:6][CH:7]=[CH:8][CH:9]=1>C(O)(C(F)(F)F)=O.C(Cl)Cl>[NH2:10][C@H:3]([CH2:4][C:5]1[S:6][CH:7]=[CH:8][CH:9]=1)[C:2]([NH2:1])=[O:18]

参加物

4

反応物 1

HCID 67776928(R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate

生成物 1

HCID 67508269(R)-2-amino-3-(thiophen-2-yl)propanamide収率 32.5%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 6422Trifluoroacetic acid溶媒

実験手順

A solution of (R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate (454 mg, 1.68 mmol) in TFA (4 mL) and CH2Cl2 (6 mL) was stirred at room temperature for 3 h. It was then concentrated in vacuo. The residue was partitioned between EtOAc and aq. 5% NaHCO3. The EtOAc phase was separated, washed with water, concentrated in vacuo to give (R)-2-amino-3-(thiophen-2-yl)propanamide (93 mg).

後処理

  1. concentrationIt was then concentrated in vacuo
  2. customThe residue was partitioned between EtOAc and aq. 5% NaHCO3
  3. customThe EtOAc phase was separated
  4. washwashed with water
  5. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-5cf6083ab11648fe8563f866bca8ad5b
出典データセット
uspto-grants-2014_09
特許番号
US08846928B2

反応ノート

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