Cesium carbonate → (R)-2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)-8-(2-(2,2-dimethyl-1,3-dioxolan-4-yl)-2-methylpropoxy)-6-fluoroquinoline

HRID 2035661노트

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HRID 2035661 반응식
[N:1]1[N:2]=[C:3]([C:10]2[CH:19]=[CH:18][C:17]3[C:12](=[C:13]([OH:21])[CH:14]=[C:15]([F:20])[CH:16]=3)[N:11]=2)[N:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12.CS(O[CH2:27][C:28]([C@@H:31]1[CH2:35][O:34][C:33]([CH3:37])([CH3:36])[O:32]1)([CH3:30])[CH3:29])(=O)=O.C(=O)([O-])[O-].[Cs+].[Cs+]>CC(N(C)C)=O>[N:1]1[N:2]=[C:3]([C:10]2[CH:19]=[CH:18][C:17]3[C:12](=[C:13]([O:21][CH2:30][C:28]([C@@H:31]4[CH2:35][O:34][C:33]([CH3:37])([CH3:36])[O:32]4)([CH3:27])[CH3:29])[CH:14]=[C:15]([F:20])[CH:16]=3)[N:11]=2)[N:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12

참가 물질

5

반응물 3

HCID 10796Cesium carbonateHCID 86654366(R)-2-(2,2-dimethyl-1,3-dioxolan-4-yl)-2-methylpropyl methanesulfonateHCID 1363378052-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-6-fluoroquinolin-8-ol

생성물 1

HCID 67234098(R)-2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)-8-(2-(2,2-dimethyl-1,3-dioxolan-4-yl)-2-methylpropoxy)-6-fluoroquinoline수율 134.8%

시약·촉매·용매 1

HCID 31374Dimethylacetamide용매

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온도
85 °C

실험 절차

2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)-6-fluoroquinolin-8-ol (0.09 g, 0.34 mmol), (R)-2-(2,2-dimethyl-1,3-dioxolan-4-yl)-2-methylpropyl methanesulfonate (0.11 g, 0.45 mmol) and cesium carbonate (0.22 g, 0.69 mmol) were added to 1 to 2 mL of DMA and heated to 85° C. for 4-5 hours. The reaction was concentrated and treated with water and ethyl acetate. The reaction was extracted several times with ethyl acetate. The organic layer was dried over MgSO4, filtered, and concentrated. The residue was purified on Silica gel using 2% NH4OH in isopropyl acetate and DCM to provide 200 mgs of the desired product (85% pure).

후처리

  1. concentrationThe reaction was concentrated
  2. additiontreated with water and ethyl acetate
  3. extractionThe reaction was extracted several times with ethyl acetate
  4. dry with materialThe organic layer was dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified on Silica gel using 2% NH4OH in isopropyl acetate and DCM

출처 및 근거

ORD 기록
ord-15a0d8e844324f778453bb5fded82817
출처 데이터셋
uspto-grants-2013_11
특허 번호
US08575145B2

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