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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 1812284
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HRID 1812284 반응식
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
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참가 물질

6

반응물 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

생성물 1

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

시약·촉매·용매 2

HCID 962Water용매
HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

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).

후처리

  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

출처 및 근거

ORD 기록
ord-702ee734d03449c89634ce5d467a5e68
출처 데이터셋
uspto-grants-2013_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08362241B2

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