Ethylenediamine → 6-(4,5-dihydro-1H-imidazol-2-yl)-N-phenylimidazo[1,2-a]pyridine-2-carboxamide hydrochloride

HRID 1878458ノート

反応式

HRID 1878458 の反応式
[ClH:1].[C:2]1([NH:8][C:9]([C:11]2[N:12]=[C:13]3[CH:18]=[CH:17][C:16]([C:19](=[NH:23])OCC)=[CH:15][N:14]3[CH:24]=2)=[O:10])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:25](N)[CH2:26][NH2:27]>C(O)C>[ClH:1].[NH:27]1[CH2:26][CH2:25][N:23]=[C:19]1[C:16]1[CH:17]=[CH:18][C:13]2[N:14]([CH:24]=[C:11]([C:9]([NH:8][C:2]3[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=3)=[O:10])[N:12]=2)[CH:15]=1

参加物

4

反応物 2

HCID 3301EthylenediamineHCID 68780784Ethyl 2-phenylcarbamoylimidazo[1,2-a]pyridine-6-carboximidate hydrochloride

生成物 1

HCID 687801786-(4,5-dihydro-1H-imidazol-2-yl)-N-phenylimidazo[1,2-a]pyridine-2-carboxamide hydrochloride

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

反応条件

温度
0 °C

実験手順

A suspension of 296 mg of ethyl 2-phenylcarbamoylimidazo[1,2-a]pyridine-6-carboximidate hydrochloride (1:1) in 10 mL of ethanol is cooled to 0° C., followed by addition of 144 μL of ethylenediamine. The reaction mixture is refluxed for 16 hours and then stirred at room temperature for 60 hours. The precipitate is filtered off by suction and washed with ethanol and then recrystallized from methanol to give 64 mg of 6-(4,5-dihydro-1H-imidazol-2-yl)-N-phenylimidazo[1,2-a]pyridine-2-carboxamide hydrochloride (1:2) in the form of a white solid. The filtrate is concentrated to dryness and taken up in water. The insoluble matter is filtered off by suction, washed with methanol and then dried to give 99 mg of 6-(4,5-dihydro-1H-imidazol-2-yl)-N-phenylimidazo[1,2-a]pyridine-2-carboxamide hydrochloride (1:1) in the form of a white solid.

後処理

  1. temperatureThe reaction mixture is refluxed for 16 hours
  2. filtrationThe precipitate is filtered off by suction
  3. washwashed with ethanol
  4. customrecrystallized from methanol

出典と根拠

ORDレコード
ord-aecd75816e744b459bbec04504cb1555
出典データセット
uspto-grants-2012_11
特許番号
US08314109B2

反応ノート

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