Sodium Carbonate → N-(4-{4-amino-7-[(1E)-3-oxoprop-1-enyl]furo[3,2-c]pyridin-3-yl}-2-methoxyphenyl)-1-methyl-1H-benzimidazole-2-carboxamide

HRID 17196

Reaktionsgleichung

Reaktionsgleichung von HRID 17196
[NH2:1][C:2]1[C:7]2[C:8]([C:11]3[CH:16]=[CH:15][C:14]([NH:17][C:18]([C:20]4[N:24]([CH3:25])[C:23]5[CH:26]=[CH:27][CH:28]=[CH:29][C:22]=5[N:21]=4)=[O:19])=[C:13]([O:30][CH3:31])[CH:12]=3)=[CH:9][O:10][C:6]=2[C:5](I)=[CH:4][N:3]=1.C([O:35][CH:36](OCC)/[CH:37]=[CH:38]/B1OC(C)(C)C(C)(C)O1)C.C(=O)([O-])[O-].[Na+].[Na+].O.C1(C)C=CC(S(O)(=O)=O)=CC=1>COCCOC.O>[NH2:1][C:2]1[C:7]2[C:8]([C:11]3[CH:16]=[CH:15][C:14]([NH:17][C:18]([C:20]4[N:24]([CH3:25])[C:23]5[CH:26]=[CH:27][CH:28]=[CH:29][C:22]=5[N:21]=4)=[O:19])=[C:13]([O:30][CH3:31])[CH:12]=3)=[CH:9][O:10][C:6]=2[C:5](/[CH:38]=[CH:37]/[CH:36]=[O:35])=[CH:4][N:3]=1

Komponenten

7

Edukt 4

HCID 10340Sodium Carbonate2×HCID 521998p-Toluenesulfonic acid monohydrateHCID 11065022(E)-2-(3,3-Diethoxyprop-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane2×HCID 18451295N-[4-(4-amino-7-iodofuro[3,2-c]pyridin-3-yl)-2-methoxyphenyl]-1-methyl-1H-benzimidazole-2-carboxamide

Produkt 1

HCID 18451055N-(4-{4-amino-7-[(1E)-3-oxoprop-1-enyl]furo[3,2-c]pyridin-3-yl}-2-methoxyphenyl)-1-methyl-1H-benzimidazole-2-carboxamideAusbeute 36,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittel2×HCID 80711,2-DimethoxyethaneLösungsmittel

Versuchsvorschrift

A mixture of N-[4-(4-amino-7-iodofuro[3,2-c]pyridin-3-yl)-2-methoxyphenyl]-1-methyl-1H-benzimidazole-2-carboxamide (1.50 g, 2.78 mmol) in 1,2-dimethoxyethane (30 mL) and water (15 mL) was reacted 2-[(E)-3,3-diethoxy-1-propenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.42 g, 5.56 mmol,), sodium carbonate (1.17 g, 11.12 mmol) and tetrakis triphenylphosphine palladium (0) (0.19 g, 0.17 mmol) at 80° C. for 18 hours. Additional 2-[(E)-3,3-diethoxy-1-propenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.00 g, 3.90 mmol,), sodium carbonate (0.508 g, 4.80 mmol) and tetrakis triphenylphosphine palladium (0) (0.19 g, 0.17 mmol) was added and the mixture was heated for another 24 hours. Additional tetrakis triphenylphosphine palladium (0) (0.32 g, 0.27 mmol) was added and the mixture was heated for another 24 hours after which time all starting material was consumed. The solvent was removed in vacuo and the residue was triturated with water (30 mL) for 3 hours. The solid was collected by filtration and dried in vacuo. The crude product was suspended in acetone (60 mL) and water (8 mL) and reacted with p-toluenesulfonic acid monohydrate (0.10 g, 0.52 mmol) at ambient temperature for eighteen hours. The acetone was removed in vacuo and the precipitate was filtered, washing with water. The precipitate was triturated with 2-propanol (30 mL) for 1 hour. The solvent was removed an the residue was partitioned between dichloromethane (20 mL) and water (40 mL). The organic layer was dried over anhydrous magnesium sulfate and the solvent was removed in vacuo to give the title compound (0.48 g, 31%) as a yellow solid. 1H NMR (DMSO-d6, 400 MHz) δ 10.19 (s, 1H), 9.64 (d, 1H), 8.52 (dd, 1H), 8.26 (s, 1H), 8.21 (s, 1H), 7.86 (d, 1H), 7.75-7.82 (m, 2H), 7.47 (t, 1H), 7.39 (t, 1H), 7.32 (d, 1H), 7.21 (dd, 1H), 6.93 (dd, 1H), 4.25 (s, 3H), 4.04 (s, 3H), 1.86 (s, 3H); RP-HPLC (Conditions g) Rt 12.21 min.; MS: MH+ 468.

Aufarbeitung

  1. temperaturethe mixture was heated for another 24 hours
  2. temperaturethe mixture was heated for another 24 hours after which time all starting material
  3. customwas consumed
  4. customThe solvent was removed in vacuo
  5. customthe residue was triturated with water (30 mL) for 3 hours
  6. filtrationThe solid was collected by filtration
  7. customdried in vacuo
  8. customThe acetone was removed in vacuo
  9. filtrationthe precipitate was filtered
  10. washwashing with water
  11. customThe precipitate was triturated with 2-propanol (30 mL) for 1 hour
  12. customThe solvent was removed an the residue
  13. customwas partitioned between dichloromethane (20 mL) and water (40 mL)
  14. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  15. customthe solvent was removed in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-243024e82f2243f2871d2863333f8cf7
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07737160B2

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