Acetic Acid → N-(1-Benzyl-4,4-diethoxy-piperidin-3-yl)-6-[2-ethyl-5-fluoro-4-(2-trimethylsilanyl-ethoxymethoxy)-phenyl]-1-(tetrahydro-pyran-2-yl)-1H-indazole-3-carboxamidine

HRID 2038712

Reaktionsgleichung

Reaktionsgleichung von HRID 2038712
CO[C:3]([C:5]1[C:13]2[C:8](=[CH:9][C:10]([C:14]3[CH:19]=[C:18]([F:20])[C:17]([O:21][CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:29])([CH3:28])[CH3:27])=[CH:16][C:15]=3[CH2:30][CH3:31])=[CH:11][CH:12]=2)[N:7]([CH:32]2[CH2:37][CH2:36][CH2:35][CH2:34][O:33]2)[N:6]=1)=[NH:4].[CH2:38]([N:45]1[CH2:50][CH2:49][C:48]([O:54][CH2:55][CH3:56])([O:51][CH2:52][CH3:53])[CH:47]([NH2:57])[CH2:46]1)[C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1.C(O)(=O)C>C(O)C>[CH2:38]([N:45]1[CH2:50][CH2:49][C:48]([O:54][CH2:55][CH3:56])([O:51][CH2:52][CH3:53])[CH:47]([NH:57][C:3]([C:5]2[C:13]3[C:8](=[CH:9][C:10]([C:14]4[CH:19]=[C:18]([F:20])[C:17]([O:21][CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:29])([CH3:27])[CH3:28])=[CH:16][C:15]=4[CH2:30][CH3:31])=[CH:11][CH:12]=3)[N:7]([CH:32]3[CH2:37][CH2:36][CH2:35][CH2:34][O:33]3)[N:6]=2)=[NH:4])[CH2:46]1)[C:39]1[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=1

Komponenten

5

Edukt 3

HCID 176Acetic AcidHCID 217299351-Benzyl-4,4-diethoxypiperidin-3-amineHCID 866762716-[2-Ethyl-5-fluoro-4-(2-trimethylsilanyl-ethoxymethoxy)-phenyl]-1-(tetrahydro-pyran-2-yl)-1H-indazole-3-carboximidic acid methyl ester

Produkt 1

HCID 178467533N-(1-Benzyl-4,4-diethoxy-piperidin-3-yl)-6-[2-ethyl-5-fluoro-4-(2-trimethylsilanyl-ethoxymethoxy)-phenyl]-1-(tetrahydro-pyran-2-yl)-1H-indazole-3-carboxamidineAusbeute 45 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel2×

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

To a solution of 6-[2-ethyl-5-fluoro-4-(2-trimethylsilanyl-ethoxymethoxy)-phenyl]-1-(tetrahydro-pyran-2-yl)-1H-indazole-3-carboximidic acid methyl ester (Preparation 7, 17.15 g, 32.49 mmol) in ethanol (100 mL) was added a solution of 1-benzyl-4,4-diethoxy-piperidin-3-ylamine (Tetrahedron, 1995, 51, 13447-13454; 9.51 g, 34.2 mmol) in ethanol (70 mL). Acetic acid (3.56 mL, 62.1 mmol) was added and the reaction mixture was heated at 50° C. for 18 hours. The reaction mixture was concentrated in vacuo and the residue was partitioned between EtOAc (400 mL) and saturated sodium hydrogen carbonate aqueous solution (300 mL). The organic layer was washed with further saturated sodium hydrogen carbonate aqueous solution (300 mL). The combined aqueous layers were re-extracted with EtOAc (400 mL). The combined organic layers were dried over MgSO4 and concentrated in vacuo. The crude product was purified by column chromatography on silica gel eluting with DCM:methanol:ammonia (80:20:2) to give the title compound (11.31 g) in a 45% yield.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. customthe residue was partitioned between EtOAc (400 mL) and saturated sodium hydrogen carbonate aqueous solution (300 mL)
  3. washThe organic layer was washed with further saturated sodium hydrogen carbonate aqueous solution (300 mL)
  4. extractionThe combined aqueous layers were re-extracted with EtOAc (400 mL)
  5. dry with materialThe combined organic layers were dried over MgSO4
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified by column chromatography on silica gel eluting with DCM:methanol:ammonia (80:20:2)

Quellen und Nachweise

ORD-Eintrag
ord-640b9a18d261461f9c78e5e0a37bcaff
Quelldatensatz
uspto-grants-2013_11
Patentnummer
US08575336B2

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