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Pyridine → 4-{4-[(2-Phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperidine-1-carboxylic acid 4-nitro-phenyl ester

HRID 557747
ノート
印刷プレビュー

反応式

HRID 557747 の反応式
Cl.[NH:2]1[CH2:7][CH2:6][CH:5]([C:8]2[CH:13]=[CH:12][C:11]([NH:14][C:15]([C:17]3[N:18]=[C:19]([C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[O:20][C:21]=3[C:22]([F:25])([F:24])[F:23])=[O:16])=[CH:10][CH:9]=2)[CH2:4][CH2:3]1.Cl[C:33]([O:35][C:36]1[CH:41]=[CH:40][C:39]([N+:42]([O-:44])=[O:43])=[CH:38][CH:37]=1)=[O:34].N1C=CC=CC=1>C(Cl)Cl>[N+:42]([C:39]1[CH:38]=[CH:37][C:36]([O:35][C:33]([N:2]2[CH2:7][CH2:6][CH:5]([C:8]3[CH:9]=[CH:10][C:11]([NH:14][C:15]([C:17]4[N:18]=[C:19]([C:26]5[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=5)[O:20][C:21]=4[C:22]([F:23])([F:24])[F:25])=[O:16])=[CH:12][CH:13]=3)[CH2:4][CH2:3]2)=[O:34])=[CH:41][CH:40]=1)([O-:44])=[O:43]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 1049PyridineHCID 821294-Nitrophenyl chloroformateHCID 667384472-Phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperidin-4-yl-phenyl)-amide hydrochloride salt

生成物 1

HCID 576520494-{4-[(2-Phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperidine-1-carboxylic acid 4-nitro-phenyl ester収率 33.1%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

To a mixture of 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperidin-4-yl-phenyl)-amide hydrochloride salt (2.0 g, 4.43 mmol) in methylene chloride (20 mL) at room temperature was added p-nitrophenyl chloroformate (1.11 g, 5.52 mmol) followed by pyridine (1.1 mL, 13.6 mmol). The mixture was stirred at room temperature overnight. The slurry was filtered and the filtrate was evaporated to give a crude material (2.4 g). The crude was triturated with methanol and filtration gave 4-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperidine-1-carboxylic acid 4-nitro-phenyl ester (850 mg, crude) as a white solid, which was directly used in the next step without further purification. LCMS calcd for C29H23F3N4O6 (m/e) 580, obsd 581 (M+H). The NMR spectrum obtained on the sample is compatible with its structure.

後処理

  1. filtrationThe slurry was filtered
  2. customthe filtrate was evaporated
  3. customto give a crude material (2.4 g)
  4. filtrationThe crude was triturated with methanol and filtration

出典と根拠

ORDレコード
ord-077cefa1f62f429abe883b1ab03de6fd
出典データセット
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08058299B2

反応ノート

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