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Cesium carbonate → benzyl 4-(4-((5-methyl-3-(3-(4-(trifluoromethoxy)phenyl)-1,2,4-oxadiazol-5-yl)-1H-1,2,4-triazol-1-yl)methyl)pyridin-2-yl)piperazine-1-carboxylate

HRID 1475186
ノート
印刷プレビュー

反応式

HRID 1475186 の反応式
[CH3:1][C:2]1[NH:6][N:5]=[C:4]([C:7]2[O:11][N:10]=[C:9]([C:12]3[CH:17]=[CH:16][C:15]([O:18][C:19]([F:22])([F:21])[F:20])=[CH:14][CH:13]=3)[N:8]=2)[N:3]=1.Cl[CH2:24][C:25]1[CH:30]=[CH:29][N:28]=[C:27]([N:31]2[CH2:36][CH2:35][N:34]([C:37]([O:39][CH2:40][C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=3)=[O:38])[CH2:33][CH2:32]2)[CH:26]=1.C([O-])([O-])=O.[Cs+].[Cs+]>CN(C=O)C.O>[CH3:1][C:2]1[N:6]([CH2:24][C:25]2[CH:30]=[CH:29][N:28]=[C:27]([N:31]3[CH2:32][CH2:33][N:34]([C:37]([O:39][CH2:40][C:41]4[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=4)=[O:38])[CH2:35][CH2:36]3)[CH:26]=2)[N:5]=[C:4]([C:7]2[O:11][N:10]=[C:9]([C:12]3[CH:13]=[CH:14][C:15]([O:18][C:19]([F:22])([F:20])[F:21])=[CH:16][CH:17]=3)[N:8]=2)[N:3]=1.[CH3:1][C:2]1[N:3]=[C:4]([C:7]2[O:11][N:10]=[C:9]([C:12]3[CH:13]=[CH:14][C:15]([O:18][C:19]([F:22])([F:20])[F:21])=[CH:16][CH:17]=3)[N:8]=2)[N:5]([CH2:24][C:25]2[CH:30]=[CH:29][N:28]=[C:27]([N:31]3[CH2:32][CH2:33][N:34]([C:37]([O:39][CH2:40][C:41]4[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=4)=[O:38])[CH2:35][CH2:36]3)[CH:26]=2)[N:6]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 3

HCID 10796Cesium carbonateHCID 86711500Benzyl 4-(4-(chloromethyl)pyridin-2-yl)piperazine-1-carboxylateHCID 867118775-(5-methyl-1H-1,2,4-triazol-3-yl)-3-[4-(trifluoromethoxy)phenyl]-1,2,4-oxadiazole

生成物 2

HCID 86711878benzyl 4-(4-((5-methyl-3-(3-(4-(trifluoromethoxy)phenyl)-1,2,4-oxadiazol-5-yl)-1H-1,2,4-triazol-1-yl)methyl)pyridin-2-yl)piperazine-1-carboxylate収率 56%
HCID 86711879
benzyl 4-(4-((3-methyl-5-(3-(4-(trifluoromethoxy)phenyl)-1,2,4-oxadiazol-5-yl)-1H-1,2,4-triazol-1-yl)methyl)pyridin-2-yl)piperazine-1-carboxylate
収率 8%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

To a solution of 5-(5-methyl-1H-1,2,4-triazol-3-yl)-3-(4-(trifluoromethoxy)phenyl)-1,2,4-oxadiazole (311 mg, 1.0 mmol) and benzyl 4-(4-(chloromethyl)pyridin-2-yl)piperazine-1-carboxylate (690 mg, 2.0 mmol) in DMF (15 mL), Cs2CO3 (820 mg, 2.5 mmol) was added at RT. The mixture was stirred at RT overnight, then diluted with H2O (50 mL), and extracted with EtOAc (3×50 mL). The combined organic layers were washed with H2O (20 mL) and brine (20 mL), dried over Na2SO4, filtered and concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (Petroleum ether:EtOAc=1:2) to give benzyl 4-(4-((5-methyl-3-(3-(4-(trifluoromethoxy)phenyl)-1,2,4-oxadiazol-5-yl)-1H-1,2,4-triazol-1-yl)methyl)pyridin-2-yl)piperazine-1-carboxylate (350 mg, 56%) as a yellow oil and benzyl 4-(4-((3-methyl-5-(3-(4-(trifluoromethoxy)phenyl)-1,2,4-oxadiazol-5-yl)-1H-1,2,4-triazol-1-yl)methyl)pyridin-2-yl)piperazine-1-carboxylate as a white solid (50 mg, 8%). MS (ES+) C30H27F3N8O4 requires: 620. found: 621[M+H]+.

後処理

  1. extractionextracted with EtOAc (3×50 mL)
  2. washThe combined organic layers were washed with H2O (20 mL) and brine (20 mL)
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography (Petroleum ether:EtOAc=1:2)

出典と根拠

ORDレコード
ord-1ee8c3ee23b94a469370ade353bebd91
出典データセット
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09018380B2

反応ノート

読み込み中…

このページの内容参加物実験手順後処理出典と根拠反応ノート