Potassium Carbonate → 2-(Dipropylamino)-2-oxoethyl 3-(((benzyloxy)carbonyl)amino)propanoate

HRID 2406145ノート

反応式

HRID 2406145 の反応式
[CH2:1]([O:8][C:9]([NH:11][CH:12]([CH3:16])C(O)=O)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:17](=[O:20])([O-])[O-:18].[K+].[K+].Cl[CH2:24][C:25]([N:27]([CH2:31][CH2:32][CH3:33])[CH2:28][CH2:29][CH3:30])=[O:26]>CN(C=O)C.O>[CH2:28]([N:27]([CH2:31][CH2:32][CH3:33])[C:25]([CH2:24][O:18][C:17](=[O:20])[CH2:16][CH2:12][NH:11][C:9]([O:8][CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)=[O:10])=[O:26])[CH2:29][CH3:30]

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 95657N-(Benzyloxycarbonyl)-DL-alanineHCID 2196472-chloro-N,N-dipropylacetamide

生成物 1

HCID 667979022-(Dipropylamino)-2-oxoethyl 3-(((benzyloxy)carbonyl)amino)propanoate

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
60 °C

実験手順

To a solution of benzyloxycarbonylamino-propionic acid (22.3 g, 99.9 mmol) in DMF (150 ml) was added potassium carbonate (19.3 g, 139.9 mmol). 2-Chloro-N,N-dipropyl-acetamide (17.7 g, 99.9 mmol) was added over 30 min, and the reaction mixture was heated to 60° C. and stirred for 2.5 h. The reaction mixture was allowed to cool to RT and diluted with water (500 ml) and extracted with isopropyl acetate (total 500 ml). The combined organic phases were washed with water (3×200 ml) to afford a solution of 3-benzyloxycarbonylamino-propionic acid dipropylcarbamoylmethyl ester in isopropyl acetate which was not isolated further. LC-MS; 365.2 [M+H]+ Method (i)

後処理

  1. temperatureto cool to RT
  2. extractionextracted with isopropyl acetate (total 500 ml)
  3. washThe combined organic phases were washed with water (3×200 ml)

出典と根拠

ORDレコード
ord-b8bf382323914e69bb2b9bd4c237fa1b
出典データセット
uspto-grants-2014_08
特許番号
US08809340B2

反応ノート

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