Reaktionsgleichung
Cl.[O:2]1[CH2:7][CH2:6][N:5]([CH2:8][CH2:9][CH2:10][CH2:11][C:12]([OH:14])=[O:13])[CH2:4][CH2:3]1.CC1(C)[O:23][CH:22]2[CH:18]([C@@H:19]([CH2:33]O)[O:20][C@H:21]2[N:24]2[C:30](=[O:31])[NH:29][C:27](=[O:28])[C:26]([F:32])=[CH:25]2)[O:17]1>N1C=CC=CC=1>[O:2]1[CH2:3][CH2:4][N:5]([CH2:8][CH2:9][CH2:10][CH2:11][C:12]([O:14][CH2:33][C@H:19]2[O:20][C@@H:21]([N:24]3[CH:25]=[C:26]([F:32])[C:27](=[O:28])[NH:29][C:30]3=[O:31])[C@H:22]([OH:23])[C@@H:18]2[OH:17])=[O:13])[CH2:6][CH2:7]1Komponenten
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a solution of 2.96 g (13.2 m-mol) of 5-morpholinopentanoic acid hydrochloride in pyridine (30 ml) was added 4.2 g (13.9 m-mol) of TPS, and the mixture was stirred for 15 minutes at room temperature. To this solution was added 2.00 g (6.62 m-mol) of 2',3'-O-isopropylidene-5-fluorouridine, and the mixture was stirred for 18 hours at room temperature. The reaction liquid was concentrated under reduced pressure and the residue was distributed in chloroform (50 ml) and an 8% aqueous solution of potassium carbonate (50 ml). The aqueous phase was extracted with chloroform (50 ml ×5) and the extracts were combined with the chloroform phase previously obtained. The chloroform phase was dried with Na2SO4 and concentrated and the residue was subjected to a separation-purification treatment by way of silica gel column chromatography (column size: 5×8 cm, developing solvents: chloroform and chloroform containing 2% methanol) whereby 1.17 g of 5'-O-(5-morpholinopentanoyl)-2',3'-O-isopropylidene-5-fluorouridine was obtained.
Aufarbeitung
- stirringthe mixture was stirred for 18 hours at room temperature
- customThe reaction liquid
- concentrationwas concentrated under reduced pressure
- extractionThe aqueous phase was extracted with chloroform (50 ml ×5)
- custompreviously obtained
- dry with materialThe chloroform phase was dried with Na2SO4
- concentrationconcentrated
- customwas obtained
Quellen und Nachweise
- ORD-Eintrag
- ord-4dd768277ddc4bfaa84c3a27647af9c5
- Quelldatensatz
- uspto-grants-1982_07
- Patentnummer
- US04340728
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