Diethyl Pyrocarbonate → 2-[ethyl-(4-fluorophenyl)sulfonyl-amino]-N-[[2-methoxy-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methyl]prop-2-enamide

HRID 1479870

반응식

HRID 1479870 반응식
[CH2:1]([N:3]([S:9]([C:12]1[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=1)(=[O:11])=[O:10])[C:4](=[CH2:8])[C:5]([OH:7])=O)[CH3:2].CCOC(OC(OCC)=O)=O.[CH3:30][O:31][C:32]1[CH:37]=[C:36]([CH2:38][NH2:39])[CH:35]=[C:34]([C:40]2[CH:45]=[CH:44][C:43]([C:46]([F:49])([F:48])[F:47])=[CH:42][CH:41]=2)[N:33]=1>C1COCC1>[CH2:1]([N:3]([S:9]([C:12]1[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=1)(=[O:11])=[O:10])[C:4](=[CH2:8])[C:5]([NH:39][CH2:38][C:36]1[CH:35]=[C:34]([C:40]2[CH:41]=[CH:42][C:43]([C:46]([F:47])([F:48])[F:49])=[CH:44][CH:45]=2)[N:33]=[C:32]([O:31][CH3:30])[CH:37]=1)=[O:7])[CH3:2]

참가 물질

5

반응물 3

HCID 3051Diethyl PyrocarbonateHCID 903842012-[Ethyl-(4-fluorophenyl)sulfonyl-amino]prop-2-enoic acidHCID 90390870[2-Methoxy-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methanamine

생성물 1

HCID 903902042-[ethyl-(4-fluorophenyl)sulfonyl-amino]-N-[[2-methoxy-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methyl]prop-2-enamide수율 30.4%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

A solution of acid 4B (0.31 g, 1.1 mmol) in THF (20 mL) was added with DEPC (0.22 mL, 1.3 mol eq) and the mixture was stirred at room temperature several minutes. Then [2-methoxy-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methanamine 27I (0.36 g, 1.1 mol eq) and a catalytic amount of TEA were added, then the reaction mixture was stirred at room temperature overnight. The solvent was removed under reduced pressure, water was added to the residue that is extracted with EtOAc (3×30 mL) and washed with brine (1×40 mL). The separated organic phase was dried over Na2SO4, evaporated to dryness and the residue was purified by flash chromatography (1/1 EtOAc/Petroleum ether) to afford a white solid (180 mg) after crystallization from ethyl ether. Yield=30%. 1HNMR (DMSO, 200 MHz) δ 1.08 (t, 3H, J=6), 3.39 (m, 2H), 3.95 (s, 3H), 4.45 (d, 2H, J=6.2), 5.14 (s, 1H), 6.13 (s, 1H), 6.79 (s, 1H), 7.47 (t, 2H, J=8.2), 7.64 (s, 1H), 7.85 (m, 4H), 8.31 (d, 2H, J=7.8), 8.84 (bt, 1H). [M+1] 537.05 (C25H23F4N3O4S requires 537.53).

후처리

  1. stirringthe reaction mixture was stirred at room temperature overnight
  2. customThe solvent was removed under reduced pressure, water
  3. additionwas added to the residue that
  4. extractionis extracted with EtOAc (3×30 mL)
  5. washwashed with brine (1×40 mL)
  6. dry with materialThe separated organic phase was dried over Na2SO4
  7. customevaporated to dryness
  8. customthe residue was purified by flash chromatography (1/1 EtOAc/Petroleum ether)

출처 및 근거

ORD 기록
ord-eab68d159d5a473a933d14e597d40578
출처 데이터셋
uspto-grants-2016_08
특허 번호
US09409864B2

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