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Potassium Acetate → tert-butyl 4-((1R)-1-(5-(6-(bis(4-methoxybenzyl)amino)-2-methyl-4-pyrimidinyl)-6-fluoro-3-pyridinyl)ethyl)-1-piperazinecarboxylate

HRID 1621877
ノート
印刷プレビュー

反応式

HRID 1621877 の反応式
Cl[C:2]1[N:7]=[C:6]([CH3:8])[N:5]=[C:4]([N:9]([CH2:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=2)[CH2:10][C:11]2[CH:16]=[CH:15][C:14]([O:17][CH3:18])=[CH:13][CH:12]=2)[CH:3]=1.[C:28]([O:32][C:33]([N:35]1[CH2:40][CH2:39][N:38]([C@@H:41]([C:43]2[CH:44]=[C:45](B(O)O)[C:46]([F:49])=[N:47][CH:48]=2)[CH3:42])[CH2:37][CH2:36]1)=[O:34])([CH3:31])([CH3:30])[CH3:29].CC([O-])=O.[K+]>O1CCOCC1.O>[CH3:18][O:17][C:14]1[CH:15]=[CH:16][C:11]([CH2:10][N:9]([CH2:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=2)[C:4]2[N:5]=[C:6]([CH3:8])[N:7]=[C:2]([C:45]3[CH:44]=[C:43]([C@H:41]([N:38]4[CH2:37][CH2:36][N:35]([C:33]([O:32][C:28]([CH3:29])([CH3:31])[CH3:30])=[O:34])[CH2:40][CH2:39]4)[CH3:42])[CH:48]=[N:47][C:46]=3[F:49])[CH:3]=2)=[CH:12][CH: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

6

反応物 3

HCID 517044Potassium AcetateHCID 595484046-chloro-N,N-bis(4-methoxybenzyl)-2-methylpyrimidin-4-amineHCID 66600472(R)-5-(1-(4-(tert-butoxycarbonyl)piperazin-1-yl)ethyl)-2-fluoropyridin-3-ylboronic acid

生成物 1

HCID 66600507tert-butyl 4-((1R)-1-(5-(6-(bis(4-methoxybenzyl)amino)-2-methyl-4-pyrimidinyl)-6-fluoro-3-pyridinyl)ethyl)-1-piperazinecarboxylate収率 43.5%

試薬・触媒・溶媒 2

HCID 962Water溶媒
HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

6-chloro-N,N-bis(4-methoxybenzyl)-2-methylpyrimidin-4-amine (Example 177) (0.766 g, 1.996 mmol), (5-((1R)-1-(4-(tert-butoxycarbonyl)-1-piperazinyl)ethyl)-2-fluoro-3-pyridinyl)boronic acid (Example 146, Step 4)(0.705 g, 1.996 mmol), PdCl2AmPhos (0.071 g, 0.100 mmol), and KOAc (0.588 g, 5.99 mmol) in a mixture of dioxane (16.6 mL) and water (3.3 mL) was sparged with nitrogen and then heated at 100° C. for 2.5 h. The yellow reaction mixture was subsequently partitioned between CH2Cl2 (60 mL) and water (50 mL). The organic layer was separated, and the aqueous layer was extracted with CH2Cl2 (2×50 mL). The combined organic extracts were then dried over Na2SO4 and concentrated. The crude material was adsorbed onto a plug of silica gel and purified by chromatography through a silica gel column (80 g), eluting with a gradient of 0% to 100% EtOAc in hexane, to provide tert-butyl 4-((1R)-1-(5-(6-(bis(4-methoxybenzyl)amino)-2-methyl-4-pyrimidinyl)-6-fluoro-3-pyridinyl)ethyl)-1-piperazinecarboxylate (0.570 g, 0.868 mmol, 43.5% yield) as light-yellow foam. m/z (ESI, +ve) 657.2 (M+H)+. 1H NMR (400 MHz, CDCl3) δ 8.43 (d, J=8.22 Hz, 1H); 8.18 (s, 1H); 7.18 (d, J=7.24 Hz, 4H); 6.82-6.89 (m, 5H); 4.75 (br. s., 4H); 3.79 (s, 6H); 3.60 (d, J=7.04 Hz, 1H); 3.43 (br. s., 4H); 2.63 (s, 3H); 2.30-2.53 (m, 4H); 1.44 (s, 12H).

後処理

  1. customwas sparged with nitrogen
  2. customThe yellow reaction mixture was subsequently partitioned between CH2Cl2 (60 mL) and water (50 mL)
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with CH2Cl2 (2×50 mL)
  5. dry with materialThe combined organic extracts were then dried over Na2SO4
  6. concentrationconcentrated
  7. custompurified by chromatography through a silica gel column (80 g)
  8. washeluting with a gradient of 0% to 100% EtOAc in hexane

出典と根拠

ORDレコード
ord-021bbf308b9841b18097ec27fa8f29b0
出典データセット
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08772480B2

反応ノート

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