Acetyl chloride → 2-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (R)-piperidin-3-ylamide

HRID 245826ノート

反応式

HRID 245826 の反応式
C(OC([N:8]1[CH2:13][CH2:12][CH2:11][C@@H:10]([NH:14][C:15]([C:17]2[C:25]3[C:20](=[N:21][CH:22]=[C:23]([C:26]4[C:34]5[C:29](=[CH:30][C:31]([Cl:35])=[CH:32][CH:33]=5)[N:28]([CH3:36])[N:27]=4)[N:24]=3)[N:19]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[CH:18]=2)=[O:16])[CH2:9]1)=O)(C)(C)C.C(Cl)(=O)C.C1COCC1>CO>[NH:8]1[CH2:13][CH2:12][CH2:11][C@@H:10]([NH:14][C:15]([C:17]2[C:25]3[C:20](=[N:21][CH:22]=[C:23]([C:26]4[C:34]5[C:29](=[CH:30][C:31]([Cl:35])=[CH:32][CH:33]=5)[N:28]([CH3:36])[N:27]=4)[N:24]=3)[N:19]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[CH:18]=2)=[O:16])[CH2:9]1

参加物

5

反応物 3

HCID 6367Acetyl chlorideHCID 8028TetrahydrofuranHCID 71280608(R)-3-{[2-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carbonyl]-amino}-piperidine-1-carboxylic acid tert-butyl ester

生成物 1

HCID 712860612-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (R)-piperidin-3-ylamide収率 90%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒2 回

反応条件

温度
0 °C

実験手順

In a round-bottomed flask, (R)-3-{[2-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carbonyl]-amino}-piperidine-1-carboxylic acid tert-butyl ester (138 mg, 0.22 mmol) was suspended in methanol (2 ml). The reaction was cooled to 0° C. and acetyl chloride (0.30 ml, 4.22 mmol) was added dropwise over 10 min. The resultant bright yellow suspension was stirred at room temperature for 50 min. THF (1 ml) and methanol (1 ml) were added and stirred was continued for 1 h at room temperature then the solvent was evaporated at room temperature. The residue was suspended in dichloromethane and washed with saturated Na2CO3-solution. The aqueous layer was extracted with dichloromethane. The organic layers were combined, dried over sodium sulfate, filtered and concentrated to afford 105 mg (90%) of 2-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (R)-piperidin-3-ylamide as a light yellow solid.

後処理

  1. stirringstirred
  2. waitwas continued for 1 h at room temperature
  3. customthe solvent was evaporated at room temperature
  4. washwashed with saturated Na2CO3-solution
  5. extractionThe aqueous layer was extracted with dichloromethane
  6. dry with materialdried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated

出典と根拠

ORDレコード
ord-3771062fcaf9446cb95d350e5bc39753
出典データセット
uspto-grants-2014_02
特許番号
US08658646B2

反応ノート

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