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Sodium Bicarbonate → benzyl (3R)-3-[({[3-(trifluoromethyl)benzoyl]amino}acetyl)amino]-1,3'-bipyrrolidine-1'-carboxylate

HRID 562576
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HRID 562576 반응식
[O:1]=[C:2]([NH:17][C@@H:18]1[CH2:22][CH2:21][NH:20][CH2:19]1)[CH2:3][NH:4][C:5](=[O:16])[C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([C:12]([F:15])([F:14])[F:13])[CH:7]=1.O=[C:24]1[CH2:28][CH2:27][N:26]([C:29]([O:31][CH2:32][C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)=[O:30])[CH2:25]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C([O-])(O)=O.[Na+]>CO.ClCCl>[F:13][C:12]([F:14])([F:15])[C:8]1[CH:7]=[C:6]([CH:11]=[CH:10][CH:9]=1)[C:5]([NH:4][CH2:3][C:2]([NH:17][C@@H:18]1[CH2:22][CH2:21][N:20]([CH:28]2[CH2:24][CH2:25][N:26]([C:29]([O:31][CH2:32][C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)=[O:30])[CH2:27]2)[CH2:19]1)=[O:1])=[O:16]
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참가 물질

7

반응물 4

HCID 516892Sodium BicarbonateHCID 5612031-N-Cbz-3-pyrrolidinoneHCID 5049666Sodium triacetoxyborohydrideHCID 59556069(R)-N-(2-oxo-2-(pyrrolidin-3-ylamino)ethyl)-3-(trifluoromethyl)benzamide

생성물 1

HCID 16061463benzyl (3R)-3-[({[3-(trifluoromethyl)benzoyl]amino}acetyl)amino]-1,3'-bipyrrolidine-1'-carboxylate수율 109.9%

시약·촉매·용매 2

HCID 887Methanol용매HCID 6344Dichloromethane용매

실험 절차

To a solution of N-{2-oxo-2-[(3R)-pyrrolidin-3-ylamino]ethyl}-3-(trifluoromethyl)benzamide (500 mg, 1.59 mmol; prepared according to WO2004/050024A2) in methanol (5 mL) at room temperature was added benzyl 3-oxopyrrolidine-1-carboxylate (434 mg, 1.98 mmol) followed by sodium triacetoxyborohydride (470 mg, 2.22 mmol); the reaction mixture was stirred for 16 hours. To the mixture was added NaHCO3 (sat. aq., 10 mL) and dichloromethane (10 mL). The organic layer was separated and the aqueous layer was washed with an addition portion of dichloromethane (10 mL). The organic layers were combined, dried over Na2SO4, filtered and concentrated. The resulting crude product was subjected to flash chromatography (15% MeOH, 1% NH4OH in EtOAc) to afford, as a mixture of diastereomers, benzyl (3R)-3-[({[3-(trifluoromethyl)benzoyl]amino}acetyl)amino]-1,3′-bipyrrolidine-1′-carboxylate (906 mg, 88%) as a white solid. 1H-NMR (CDCl3) δ: 1.30-1.44 (m, 2H), 1.50-1.68 (m, 2H), 1.80-2.00 (m, 2H), 2.10-3.29 (m, 1H), 2.30-2.43 (m, 1H), 2.55-23.05 (m, 3H), 3.15-3.28 (m, 1H), 3.58-4.20 (m, 3H), 4.30-4.50 (m, 1H), 5.09 (s, 2H), 6.70-6.87 (m, 1H), 7.20-7.50 (m, 6H), 7.52 (t, J=8.7 Hz, 1H), 7.72 (d, J=7.2 Hz, 1H), 7.99 (d, J=7.2 Hz, 1H), 8.09 (s, 1H). MS m/z: 519 (M+1)

후처리

  1. customThe organic layer was separated
  2. washthe aqueous layer was washed with an addition portion of dichloromethane (10 mL)
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-c082fb88a9f846b09ea211362c89fb28
출처 데이터셋
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08067415B2

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