Cesium carbonate → Methyl 3-{1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-2,2-dioxido-1,3-dihydro-2,1,3-benzothiadiazol-5-yl}-4-fluorobenzoate

HRID 515219

반응식

HRID 515219 반응식
Br[C:2]1[CH:19]=[CH:18][C:5]2[N:6]([CH2:12][CH:13]3[CH2:15][C:14]3([F:17])[F:16])[S:7](=[O:11])(=[O:10])[N:8]([CH3:9])[C:4]=2[CH:3]=1.[F:20][C:21]1[CH:26]=[CH:25][C:24]([C:27]([O:29][CH3:30])=[O:28])=[CH:23][C:22]=1B(O)O.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.O.CCOC(C)=O.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C>[F:16][C:14]1([F:17])[CH2:15][CH:13]1[CH2:12][N:6]1[C:5]2[CH:18]=[CH:19][C:2]([C:22]3[CH:23]=[C:24]([CH:25]=[CH:26][C:21]=3[F:20])[C:27]([O:29][CH3:30])=[O:28])=[CH:3][C:4]=2[N:8]([CH3:9])[S:7]1(=[O:11])=[O:10]

참가 물질

8

반응물 3

HCID 10796Cesium carbonateHCID 230053662-Fluoro-5-(methoxycarbonyl)benzeneboronic acidHCID 682450025-Bromo-1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-1,3-dihydro-2,1,3-benzothiadiazole 2,2-dioxide

생성물 1

HCID 67411528Methyl 3-{1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-2,2-dioxido-1,3-dihydro-2,1,3-benzothiadiazol-5-yl}-4-fluorobenzoate

시약·촉매·용매 4

HCID 178418851HCID 178418851, 화합물촉매HCID 962Water용매HCID 8857Ethyl Acetate용매HCID 312751,4-Dioxane용매

반응 조건

온도
100 °C

실험 절차

5-bromo-1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-1,3-dihydro-2,1,3-benzothiadiazole 2,2-dioxide (4-1) (100 mg, 0.28 mmol, 1 eq), [2-fluoro-5-(methoxycarbonyl)phenyl]boronic acid (84 mg, 0.43 mmol, 1.5 eq), cesium carbonate (185 mg, 0.57 mmol, 2.0 eq) and bis(tri-t-butylphosphine)palladium(0) (29 mg, 0.06 mmol, 0.2 eq) were combined in dioxane (1.5 mL) and water (0.3 mL). The resulting mixture was heated in the microwave at 100° C. for 10 minutes. The reaction mixture was diluted with EtOAc (10 mL), washed with water (2 mL) and brine (2 mL), dried over MgSO4, filtered and concentrated. The crude residue was purified by flash chromatography (12 g SiO2, 0-70% EtOAc in hexanes) to afford methyl 3-{1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-2,2-dioxido-1,3-dihydro-2,1,3-benzothiadiazol-5-yl}-4-fluorobenzoate (17-1) as a yellow solid. 1H NMR (400 MHz, CDCl3): δ 8.14 (dd, J=1.6, 6.0 Hz, 1 H); 8.01 (m, 1 H); 7.21 (m, 2 H); 6.95 (t, J=1.2 Hz, 1 H); 6.90 (d, J=6.4 Hz, 1 H); 3.94 (s, 3 H); 3.91 (d, J=5.6 Hz, 2 H); 3.33 (s, 3 H); 2.14 (m, 1 H); 1.64 (m, 1 H); 1.39 (m, 1 H).

후처리

  1. washwashed with water (2 mL) and brine (2 mL)
  2. dry with materialdried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude residue was purified by flash chromatography (12 g SiO2, 0-70% EtOAc in hexanes)

출처 및 근거

ORD 기록
ord-fd38925c2cb943349b06e77c1c30b641
출처 데이터셋
uspto-grants-2015_08
특허 번호
US09108937B2

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