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Sodium Carbonate → (3R)-tert-butyl 3-(6-(5-(6-cyclopropylpyrazin-2-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)piperidine-1-carboxylate

HRID 1529275
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HRID 1529275 반응식
[O:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]1[N:7]1[C:15]2[C:10](=[CH:11][C:12](B3OC(C)(C)C(C)(C)O3)=[CH:13][CH:14]=2)[C:9]([C:25]2[N:30]=[C:29]([O:31][C@@H:32]3[CH2:37][CH2:36][CH2:35][N:34]([C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[CH2:33]3)[CH:28]=[N:27][CH:26]=2)=[N:8]1.Br[C:46]1[CH:51]=[N:50][CH:49]=[C:48]([CH:52]2[CH2:54][CH2:53]2)[N:47]=1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH:52]1([C:48]2[N:47]=[C:46]([C:12]3[CH:11]=[C:10]4[C:15](=[CH:14][CH:13]=3)[N:7]([CH:2]3[CH2:3][CH2:4][CH2:5][CH2:6][O:1]3)[N:8]=[C:9]4[C:25]3[N:30]=[C:29]([O:31][C@@H:32]4[CH2:37][CH2:36][CH2:35][N:34]([C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[CH2:33]4)[CH:28]=[N:27][CH:26]=3)[CH:51]=[N:50][CH:49]=2)[CH2:54][CH2:53]1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 457883052-Bromo-6-cyclopropylpyrazineHCID 86709761(3R)-tert-butyl 3-(6-(1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)piperidine-1-carboxylate

생성물 1

HCID 67959666(3R)-tert-butyl 3-(6-(5-(6-cyclopropylpyrazin-2-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)piperidine-1-carboxylate수율 70%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 312751,4-Dioxane용매

반응 조건

온도
100 °C

실험 절차

A glass microwave reaction vessel was charged with (3R)-tert-butyl 3-(6-(1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)piperidine-1-carboxylate (1.315 g, 2.17 mmol) and Pd(PPh3)4 (0.125 g, 0.11 mmol). The tube was sealed and evacuated under vacuum and back-filled with N2 (g). A solution of 2-bromo-6-cyclopropylpyrazine (0.562 g, 2.82 mmol) in dioxane (1.8 mL) and 2 M Na2CO3 (5.43 mL, 10.86 mmol) were added. The reaction mixture was stirred and heated at 100° C. for 2 h. After cooling to RT, the organic layer was separated and dried over anhydrous Na2SO4, filtered and concentrated. The crude material was absorbed onto a plug of silica gel and purified by chromatography through a Redi-Sep pre-packed silica gel column (80 g), eluting with a gradient of 0% to 40% EtOAc in hexanes, to provide (3R)-tert-butyl 3-(6-(5-(6-cyclopropylpyrazin-2-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)piperidine-1-carboxylate (0.910 g, 1.52 mmol, 70% yield) as a yellow foam. MS (ESI, pos. ion) m/z: 598.2 (M+1).

후처리

  1. customA glass microwave reaction vessel
  2. customThe tube was sealed
  3. customevacuated under vacuum
  4. additionback-filled with N2 (g)
  5. temperatureAfter cooling to RT
  6. customthe organic layer was separated
  7. dry with materialdried over anhydrous Na2SO4
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customThe crude material was absorbed onto a plug of silica gel
  11. custompurified by chromatography through a Redi-Sep pre-packed silica gel column (80 g)
  12. washeluting with a gradient of 0% to 40% EtOAc in hexanes

출처 및 근거

ORD 기록
ord-21bf32ab9a914098b7e6c9d454a92910
출처 데이터셋
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09090593B2

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