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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
ノート
印刷プレビュー

反応式

HRID 592348 の反応式
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
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

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

生成物 1

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

試薬・触媒・溶媒 3

HCID 3007855
Zincchloride
触媒
HCID 111,2-Dichloroethane溶媒
HCID 6386tert-Butanol溶媒

実験手順

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]+.

後処理

  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.)

出典と根拠

ORDレコード
ord-31eaf9e93a534629936a77dd6434d044
出典データセット
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09238644B2

反応ノート

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