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Potassium Acetate → tert-butyl 4-((1R)-1-(6-fluoro-5-(2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate

HRID 1812267
ノート
印刷プレビュー

反応式

HRID 1812267 の反応式
Cl[C:2]1[N:10]=[C:9]([CH3:11])[N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[CH:12]1[CH2:17][CH2:16][CH2:15][CH2:14][O:13]1.[C:18]([O:22][C:23]([N:25]1[CH2:30][CH2:29][N:28]([C@@H:31]([C:33]2[CH:34]=[C:35](B(O)O)[C:36]([F:39])=[N:37][CH:38]=2)[CH3:32])[CH2:27][CH2:26]1)=[O:24])([CH3:21])([CH3:20])[CH3:19].C([O-])(=O)C.[K+]>O1CCOCC1.ClCCl.O.[Cl-].[Na+].O>[F:39][C:36]1[N:37]=[CH:38][C:33]([C@H:31]([N:28]2[CH2:27][CH2:26][N:25]([C:23]([O:22][C:18]([CH3:19])([CH3:21])[CH3:20])=[O:24])[CH2:30][CH2:29]2)[CH3:32])=[CH:34][C:35]=1[C:2]1[N:10]=[C:9]([CH3:11])[N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[CH:12]1[CH2:17][CH2:16][CH2:15][CH2:14][O:13]1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 3

HCID 517044Potassium AcetateHCID 595482686-chloro-2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purineHCID 66600472(R)-5-(1-(4-(tert-butoxycarbonyl)piperazin-1-yl)ethyl)-2-fluoropyridin-3-ylboronic acid

生成物 1

HCID 68518749tert-butyl 4-((1R)-1-(6-fluoro-5-(2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate収率 77%

試薬・触媒・溶媒 4

HCID 962
Water
溶媒
2 回
HCID 6344Dichloromethane溶媒
HCID 312751,4-Dioxane溶媒
HCID 57417360Sodium chloride; water溶媒

反応条件

温度
120 °C

実験手順

A glass microwave reaction vessel was charged with 6-chloro-2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purine (0.250 g, 0.989 mmol) and (R)-5-(1-(4-(tert-butoxycarbonyl)piperazin-1-yl)ethyl)-2-fluoropyridin-3-ylboronic acid (0.489 g, 1.385 mmol) in dioxane (3 mL). Then A-Phos (0.070 g, 0.099 mmol), potassium acetate (0.291 g, 2.97 mmol) and water (0.5 mL) were added into the reaction mixture. The reaction mixture was stirred and heated in a CEM Explorer Microwave at 120° C. for 10 min (120 watts, Powermax feature on). The mixture was diluted with dichloromethane (10 mL), water (10 mL) and brine solution (5 mL). The organic layer was collected by extracting with dichloromethane (3×10 mL). The combined organic extracts were dried over sodium sulfate, filtered and concentrated in vacuo to give the crude material as a tan oil. The crude material was adsorbed onto a plug of silica gel and purified by chromatography through a silica-gel column (40 g) eluting with 100% ethyl acetate to give tert-butyl 4-((1R)-1-(6-fluoro-5-(2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate (0.400 g, 0.761 mmol, 77% yield) as a light-yellow solid. 1H NMR (400 MHz, CDCl3) δ 8.20-8.29 (m, 3H) 5.78 (dd, J=10.37, 2.35 Hz, 1H) 3.76 (s, 1H) 3.55 (d, J=6.65 Hz, 1H) 3.34 (s, 5H) 2.82 (s, 3H) 2.33 (d, J=5.09 Hz, 5H) 1.95-2.13 (m, 3H) 1.56-1.81 (m, 5H) 1.33-1.40 (m, 9H). m/z (ESI, +ve ion) 526.2 (M+H)+.

後処理

  1. customA glass microwave reaction vessel
  2. customThe organic layer was collected
  3. extractionby extracting with dichloromethane (3×10 mL)
  4. dry with materialThe combined organic extracts were dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customto give the crude material as a tan oil
  8. custompurified by chromatography through a silica-gel column (40 g)
  9. washeluting with 100% ethyl acetate

出典と根拠

ORDレコード
ord-1b003636f5f04b379bdc862437b854ac
出典データセット
uspto-grants-2013_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08362241B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート