2-Methyltetrahydrofuran → HCID 57386416, 화합물

HRID 539370

반응식

HRID 539370 반응식
CC([PH+](C(C)(C)C)CCCS([O-])(=O)=O)(C)C.[Cl:17][C:18]1[CH:19]=[C:20](B(O)O)[CH:21]=[N:22][CH:23]=1.Br[C:28]1[CH:37]=[C:36]2[C:31]([CH2:32][CH2:33][CH2:34][C:35]32[N:41]=[C:40]([NH2:42])[C:39]([CH3:43])=[N:38]3)=[CH:30][CH:29]=1.CC1CCCO1.C([O-])([O-])=O.[K+].[K+]>[Na+].[Na+].Cl[Pd+2](Cl)(Cl)Cl>[Cl:17][C:18]1[CH:19]=[C:20]([C:28]2[CH:37]=[C:36]3[C:31]([CH2:32][CH2:33][CH2:34][C:35]43[N:41]=[C:40]([NH2:42])[C:39]([CH3:43])=[N:38]4)=[CH:30][CH:29]=2)[CH:21]=[N:22][CH:23]=1

참가 물질

7

반응물 5

HCID 73012-MethyltetrahydrofuranHCID 11430Potassium CarbonateHCID 201118775-Chloropyridine-3-boronic acidHCID 249491873-(Di-tert-butylphosphonium)propane sulfonateHCID 57386415HCID 57386415, 화합물

생성물 1

HCID 57386416HCID 57386416, 화합물수율 33.4%

시약·촉매·용매 1

HCID 178479786HCID 178479786, 화합물촉매

반응 조건

온도
90 °C

실험 절차

Sodium tetrachloropalladate(II) (3.52 mg, 0.01 mmol), 3-(di-tert-butylphosphonium)propane sulfonate (6.43 mg, 0.02 mmol), 5-chloropyridin-3-ylboronic acid (51.6 mg, 0.31 mmol) and 7′-bromo-5-methyl-3′,4′-dihydro-2′H-spiro[imidazole-2,1′-naphthalen]-4-amine (Example 51 Step 4, 70 mg, 0.24 mmol) were added to a vial. 2-Methyl-tetrahydrofuran (1 mL) and K2CO3 (2M aq.) (0.359 mL, 0.72 mmol) were added and the mixture was degassed by bubbling N2 (g). The vial was sealed and heated in a microwave reactor at 90° C. for 30 min. EtOAc (5 mL) and water (5 mL) were added and the phases were separated. The aqueous phase was extracted with EtOAc twice and the combined organic layers were dried over MgSO4, filtered and concentrated in vacuo. The crude product was purified by flash chromatography (4 g SiO2, 0-10% MeOH containing 0.1M NH3 in DCM). The fractions containing product were combined and concentrated, yielding the title compound (26 mg, 33% yield). 1H NMR (500 MHz, CD3OD) δ ppm 1.85-1.94 (m, 1 H), 2.01 (ddd, 1 H), 2.08-2.17 (m, 1 H), 2.17-2.27 (m, 1 H), 2.35 (s, 3 H), 3.02 (t, 2 H), 6.84 (d, 1 H), 7.34 (d, 1 H), 7.48 (dd, 1 H), 7.97 (t, 1 H), 8.48 (d, 1 H), 8.57 (d, 1 H); MS (ES+) m/z 325 [M+H]+.

후처리

  1. customthe mixture was degassed
  2. customby bubbling N2 (g)
  3. customThe vial was sealed
  4. additionEtOAc (5 mL) and water (5 mL) were added
  5. customthe phases were separated
  6. extractionThe aqueous phase was extracted with EtOAc twice
  7. dry with materialthe combined organic layers were dried over MgSO4
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo
  10. customThe crude product was purified by flash chromatography (4 g SiO2, 0-10% MeOH containing 0.1M NH3 in DCM)
  11. additionThe fractions containing product
  12. concentrationconcentrated

출처 및 근거

ORD 기록
ord-f21ad1a3f0a04e6e93b1d496692b7c07
출처 데이터셋
uspto-grants-2014_10
특허 번호
US08865911B2

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