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Triethylamine → Rac-2-(4-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carbonyl)-cyclopentanecarboxylic acid ethyl ester

HRID 557752
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HRID 557752 반응식
Cl.[N:2]1([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)[CH2:7][CH2:6][NH:5][CH2:4][CH2:3]1.[CH2:32]([O:34][C:35]([C@@H:37]1[CH2:41][CH2:40][CH2:39][C@H:38]1[C:42](O)=[O:43])=[O:36])[CH3:33].C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>CN1CCCC1=O.C(OCC)(=O)C>[CH2:32]([O:34][C:35]([CH:37]1[CH2:41][CH2:40][CH2:39][CH:38]1[C:42]([N:5]1[CH2:6][CH2:7][N:2]([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:23])([F:25])[F:24])=[O:16])=[CH:10][CH:9]=2)[CH2:3][CH2:4]1)=[O:43])=[O:36])[CH3:33]
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참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 57652016Rac-trans-cyclopentane-1,2-dicarboxylic acid monoethyl esterHCID 667383362-Phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperazin-1-yl-phenyl)-amide hydrochloride

생성물 1

HCID 66738241
Rac-2-(4-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carbonyl)-cyclopentanecarboxylic acid ethyl ester
수율 93%

시약·촉매·용매 2

HCID 8857Ethyl Acetate용매HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

To a solution of 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperazin-1-yl-phenyl)-amide hydrochloride (212 mg, 0.435 mmol), racemic trans-cyclopentane-1,2-dicarboxylic acid monoethyl ester (81 mg, 0.435 mmol) and triethylamine (305 μL, 2.17 mmol) in 5 mL 1-methyl-2-pyrrolidinone was added (benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (BOP, 202 mg, 0.456 mmol) in one portion and the mixture was stirred at room temperature overnight. The reaction mixture was diluted with ethyl acetate, washed with water, saturated aqueous sodium bicarbonate, dried over magnesium sulfate, filtered, and evaporated under reduced pressure. The residue was purified by flash chromatography (eluted with ethyl acetate/hexane) to yield rac-2-(4-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carbonyl)-cyclopentanecarboxylic acid ethyl ester as an amorphous solid (236 mg, 93%). ES-MS calcd for C30H31F3N4O5 (m/e) 584.60, obsd 585 (M+H).

후처리

  1. washwashed with water, saturated aqueous sodium bicarbonate
  2. dry with materialdried over magnesium sulfate
  3. filtrationfiltered
  4. customevaporated under reduced pressure
  5. customThe residue was purified by flash chromatography (eluted with ethyl acetate/hexane)

출처 및 근거

ORD 기록
ord-7dec01da16954af48c33d620010811a5
출처 데이터셋
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08058299B2

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