Trifluoroacetic acid → 2-amino-N-(6-hydroxy-benzofuran-2-ylmethyl)-6-methoxymethyl-nicotinamide
Reaktionsgleichung
FC(F)(F)C(O)=O.[NH2:8][C:9]1[N:35]=[C:34]([CH2:36][O:37][CH3:38])[CH:33]=[CH:32][C:10]=1[C:11]([NH:13][CH2:14][C:15]1[O:16][C:17]2[CH:23]=[C:22]([O:24]CC3C=CC=CC=3)[CH:21]=[CH:20][C:18]=2[CH:19]=1)=[O:12].C1(SC)C=CC=CC=1.C(=O)(O)[O-].[Na+]>O>[NH2:8][C:9]1[N:35]=[C:34]([CH2:36][O:37][CH3:38])[CH:33]=[CH:32][C:10]=1[C:11]([NH:13][CH2:14][C:15]1[O:16][C:17]2[CH:23]=[C:22]([OH:24])[CH:21]=[CH:20][C:18]=2[CH:19]=1)=[O:12]Komponenten
6
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
To a trifluoroacetic acid (11 mL) solution of 2-amino-N-(6-benzyloxy-benzofuran-2-ylmethyl)-6-methoxymethyl-nicotinamide (557 mg, 1.33 mmol) described in Example 4 was added thioanisole (626 μL, 5.35 mmol) at 0° C., which was stirred at 0° C. for 3 hours. To the reaction solution were added sodium bicarbonate and water at 0° C. followed by extraction with ethyl acetate and tetrahydrofuran. The organic layer was washed with sat. NaCl followed by drying over anhydrous magnesium sulfate and filtering. The filtrate was concentrated under a reduced pressure and the residue was purified by NH silica gel column chromatography (ethyl acetate:methanol=10:1) to obtain the title compound (331 mg, 76%) as a white solid.
Aufarbeitung
- extractionfollowed by extraction with ethyl acetate and tetrahydrofuran
- washThe organic layer was washed with sat. NaCl
- dry with materialby drying over anhydrous magnesium sulfate
- filtrationfiltering
- concentrationThe filtrate was concentrated under a reduced pressure
- customthe residue was purified by NH silica gel column chromatography (ethyl acetate:methanol=10:1)
Quellen und Nachweise
- ORD-Eintrag
- ord-d6f799def7f044c192d429ccdc3b7c23
- Quelldatensatz
- uspto-grants-2010_11
- Patentnummer
- US07829585B2
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