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Diethyl Ether → tert-Butyl 4-(5-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)pyridin-2-yl)piperidine-1-carboxylate

HRID 592348
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HRID 592348 반응식
CCOCC.Cl[C:7]1[N:12]=[C:11]([Cl:13])[C:10]([C:14]([F:17])([F:16])[F:15])=[CH:9][N:8]=1.[NH2:18][C:19]1[CH:20]=[CH:21][C:22]([CH:25]2[CH2:30][CH2:29][N:28]([C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:27][CH2:26]2)=[N:23][CH:24]=1.CCN(CC)CC>[Cl-].[Cl-].[Zn+2].ClCCCl.CC(O)(C)C>[Cl:13][C:11]1[C:10]([C:14]([F:17])([F:16])[F:15])=[CH:9][N:8]=[C:7]([NH:18][C:19]2[CH:20]=[CH:21][C:22]([CH:25]3[CH2:30][CH2:29][N:28]([C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:27][CH2:26]3)=[N:23][CH:24]=2)[N:12]=1
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8

반응물 4

HCID 3283Diethyl EtherHCID 8471TriethylamineHCID 27827742,4-Dichloro-5-(trifluoromethyl)pyrimidineHCID 59128562tert-Butyl 4-(5-aminopyridin-2-yl)piperidine-1-carboxylate

생성물 1

HCID 86712273tert-Butyl 4-(5-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)pyridin-2-yl)piperidine-1-carboxylate

시약·촉매·용매 3

HCID 3007855
Zincchloride
촉매
HCID 111,2-Dichloroethane용매
HCID 6386tert-Butanol용매

실험 절차

A 1.0 M ZnCl2 solution in Et2O (1.14 mL, 1.14 mmol) was added cautiously to a stirred solution of 2,4-dichloro-5-(trifluoromethyl)pyrimidine (217 mg, 0.999 mmol) in a 1:1 t-BuOH:DCE mixture (50 mL) at room temperature. After completion of the addition stirring was continued for 20 minutes then tert-butyl 4-(5-aminopyridin-2-yl)piperidine-1-carboxylate (I9) (263 mg, 0.952 mmol) followed by Et3N (0.159 mL, 1.14 mmol) were added. The resulting mixture was stirred at room temperature for 48 hours then the volatiles were evaporated under reduced pressure and the resulting residue was purified using silica gel column chromatography (Biotage Isolera, 24 g SiO2 cartridge, 0-55% EtOAc in petroleum benzine 40-60° C.) to give the title compound K5 as a white solid (155 mg, 36%); 1H NMR (400 MHz, d6-DMSO) δ 10.75 (s, 1H), 8.82 (s, 1H), 8.73 (d, J=2.4 Hz, 1H), 8.00 (dd, J=8.5, 2.4 Hz, 1H), 7.30 (d, J=8.5 Hz, 1H), 4.11-4.01 (m, 2H), 2.93-2.75 (m, 3H), 1.81 (d, J=11.1 Hz, 2H), 1.63-1.50 (m, 2H), 1.41 (s, 9H). LCMS-A: rt 5.604 min; m/z 458, 460 [M+H]+.

후처리

  1. customat room temperature
  2. additionAfter completion of the addition
  3. additionwere added
  4. stirringThe resulting mixture was stirred at room temperature for 48 hours
  5. customthe volatiles were evaporated under reduced pressure
  6. customthe resulting residue was purified
  7. customsilica gel column chromatography (Biotage Isolera, 24 g SiO2 cartridge, 0-55% EtOAc in petroleum benzine 40-60° C.)

출처 및 근거

ORD 기록
ord-31eaf9e93a534629936a77dd6434d044
출처 데이터셋
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09238644B2

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