Potassium Phosphate, Tribasic → methyl 5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-3-carboxylate

HRID 2367711노트

반응식

HRID 2367711 반응식
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH:11]1[CH2:16][CH2:15][CH2:14][CH2:13][O:12]1)[N:6]=[C:5]2[C:17]([O:19][CH3:20])=[O:18].[O-]P([O-])([O-])=O.[K+].[K+].[K+].[N:29]1[CH:34]=[CH:33][CH:32]=[C:31](B(O)O)[CH:30]=1>CN(C=O)C.O.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>[N:29]1[CH:34]=[CH:33][CH:32]=[C:31]([C:2]2[CH:3]=[C:4]3[C:8](=[CH:9][CH:10]=2)[N:7]([CH:11]2[CH2:16][CH2:15][CH2:14][CH2:13][O:12]2)[N:6]=[C:5]3[C:17]([O:19][CH3:20])=[O:18])[CH:30]=1

참가 물질

7

반응물 3

HCID 62657Potassium Phosphate, TribasicHCID 27343783-Pyridinylboronic acidHCID 69803802methyl 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-3-carboxylate

생성물 1

HCID 86679706methyl 5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-3-carboxylate수율 90%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매HCID 6228Dimethylformamide용매

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온도
90 °C

실험 절차

To a solution of methyl 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-3-carboxylate (CXVII) (7.0 g, 20.6 mmol) in DMF (80 mL) and water (16 mL) was added K3PO4 (6.56 g, 30.9 mmol), pyridin-3-ylboronic acid (CXXXI) (2.79 g, 22.7 mmol), Pd(PPh3)4 (1.19 g, 1.03 mmol) and. The solution was purged with argon and heated at 90° C. for 3 h. The solution was cooled to room temperature and then concentrated under reduced pressure. The residue was dissolved in DCM and washed with water, dried over MgSO4, filtered and then evaporated under vacuum. The residue was purified on a silica gel column (100% DCM→1.5:98.5 MeOH:DCM) to give methyl 5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-3-carboxylate (CXXXIX) as an orange oil which solidified at rt (6.28 g, 18.6 mmol, 90% yield). ESIMS found for C19H19N3O3 m/z 338.0 (M+H).

후처리

  1. customThe solution was purged with argon
  2. temperatureThe solution was cooled to room temperature
  3. concentrationconcentrated under reduced pressure
  4. dissolutionThe residue was dissolved in DCM
  5. washwashed with water
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. customevaporated under vacuum
  9. customThe residue was purified on a silica gel column (100% DCM→1.5:98.5 MeOH:DCM)

출처 및 근거

ORD 기록
ord-0a414a0399584b1ab7dba7e40d19210b
출처 데이터셋
uspto-grants-2014_04
특허 번호
US08697887B2

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