Potassium tert-butoxide → Tert-butyl 4-(2-bromo-4-fluorophenyl)-4-(((4'-cyano-5-(trifluoromethyl)biphenyl-3-yl)methoxy)methyl)piperidine-1-carboxylate

HRID 391373

반응식

HRID 391373 반응식
CC(C)([O-])C.[K+].[Br:7][C:8]1[CH:13]=[C:12]([F:14])[CH:11]=[CH:10][C:9]=1[C:15]1([CH2:28][OH:29])[CH2:20][CH2:19][N:18]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:17][CH2:16]1.Br[CH2:31][C:32]1[CH:33]=[C:34]([C:42]2[CH:47]=[CH:46][C:45]([C:48]#[N:49])=[CH:44][CH:43]=2)[CH:35]=[C:36]([C:38]([F:41])([F:40])[F:39])[CH:37]=1>C1COCC1>[Br:7][C:8]1[CH:13]=[C:12]([F:14])[CH:11]=[CH:10][C:9]=1[C:15]1([CH2:28][O:29][CH2:31][C:32]2[CH:33]=[C:34]([C:42]3[CH:47]=[CH:46][C:45]([C:48]#[N:49])=[CH:44][CH:43]=3)[CH:35]=[C:36]([C:38]([F:39])([F:40])[F:41])[CH:37]=2)[CH2:20][CH2:19][N:18]([C:21]([O:23][C:24]([CH3:25])([CH3:26])[CH3:27])=[O:22])[CH2:17][CH2:16]1

참가 물질

5

반응물 3

HCID 23665647Potassium tert-butoxideHCID 589934903'-(Bromomethyl)-5'-(trifluoromethyl)biphenyl-4-carbonitrileHCID 58993626Tert-butyl 4-(2-bromo-4-fluorophenyl)-4-(hydroxymethyl)piperidine-1-carboxylate

생성물 1

HCID 58993540Tert-butyl 4-(2-bromo-4-fluorophenyl)-4-(((4'-cyano-5-(trifluoromethyl)biphenyl-3-yl)methoxy)methyl)piperidine-1-carboxylate수율 68.1%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

Potassium tert-butoxide (266 mg, 2.37 mmol) was added to a 0° C. solution of tert-butyl 4-(2-bromo-4-fluorophenyl)-4-(hydroxymethyl)piperidine-1-carboxylate (460 mg, 1.18 mmol) and 3′-(bromomethyl)-5′-(trifluoromethyl)biphenyl-4-carbonitrile (524 mg, 1.54 mmol) in THF (10 mL) and was allowed to warm to ambient temperature and stir for 24 hours. The solvent was evaporated and the residue was purified by chromatography on SiO2 with a gradient of ethyl acetate/hexanes from 5% to 40%. The product tert-butyl 4-(2-bromo-4-fluorophenyl)-4-(((4′-cyano-5-(trifluoromethyl)biphenyl-3-yl)methoxy)methyl)piperidine-1-carboxylate (520 mg, 68%) was isolated as a clear syrup. 1H-NMR (CDCl3, 400 MHz) δ 7.75 (d, J=8.3 Hz, 2H), 7.67 (s, 1H), 7.58 (d, J=8.3 Hz, 2H), 7.36 (m, 3H), 7.22 (m, 1H), 6.99 (m, 1H), 4.49 (s, 2H), 3.94 (s, 2H), 3.57 (m, 1H), 3.24 (m 1H), 2.48 (m, 2H), 2.05 (m, 2H), 1.42 (s, 9H). Mass spec.: 647.2 (M+H).

후처리

  1. customThe solvent was evaporated
  2. customthe residue was purified by chromatography on SiO2 with a gradient of ethyl acetate/hexanes from 5% to 40%

출처 및 근거

ORD 기록
ord-26e4603efb0b4b56b94b6c7a9666201b
출처 데이터셋
uspto-grants-2013_02
특허 번호
US08383821B2

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