Ethanolamine → 3-Benzyloxy-5-bromo-1-(2-hydroxyethyl)-4-oxo-1,4-dihydropyridine-2-carboxylic acid 3-chlorobenzylamide
Reaktionsgleichung
[Cl:1][C:2]1[CH:3]=[C:4]([CH:25]=[CH:26][CH:27]=1)[CH2:5][NH:6][C:7]([C:9]1O[CH:11]=[C:12]([Br:24])[C:13](=[O:23])[C:14]=1[O:15][CH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)=[O:8].C(O)C.[NH2:31][CH2:32][CH2:33][OH:34]>O1CCCC1>[Cl:1][C:2]1[CH:3]=[C:4]([CH:25]=[CH:26][CH:27]=1)[CH2:5][NH:6][C:7]([C:9]1[N:31]([CH2:32][CH2:33][OH:34])[CH:11]=[C:12]([Br:24])[C:13](=[O:23])[C:14]=1[O:15][CH2:16][C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=1)=[O:8]Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 50 °C
Versuchsvorschrift
To a solution of 3-benzyloxy-5-bromo-4-oxo-4H-pyran-2-carboxylic acid 3-chlorobenzylamide (2.0 g) obtained in Example 161, Step 1 in tetrahydrofuran (10 ml)-ethanol (10 ml) was added 2-aminoethanol (0.33 ml) and the mixture was stirred at room temperature and at 50° C. respectively for 30 min. The solvent was evaporated and the residue was crystallized from ethyl acetate-diisopropyl ether to give 3-benzyloxy-5-bromo-1-(2-hydroxyethyl)-4-oxo-1,4-dihydropyridine-2-carboxylic acid 3-chlorobenzylamide (1.95 g).
Aufarbeitung
- customThe solvent was evaporated
- customthe residue was crystallized from ethyl acetate-diisopropyl ether
Quellen und Nachweise
- ORD-Eintrag
- ord-7ad9a019126a4ebc8bbe05a870656e3f
- Quelldatensatz
- uspto-grants-2007_05
- Patentnummer
- US07211572B2
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