Reaktionsgleichung
[NH2:1][C:2]1[N:7]=[C:6]([NH2:8])[C:5]([CH2:9][C:10]2[C:15]3[CH:16]=[CH:17][CH2:18][O:19][C:14]=3[C:13]([O:20][CH3:21])=[C:12]([O:22][CH3:23])[CH:11]=2)=[CH:4][N:3]=1.[O:24]=[C:25]1[O:31][C@H:30]([C@H:32]([CH2:34][OH:35])[OH:33])[C:28]([OH:29])=[C:26]1[OH:27].C>CO>[O:24]=[C:25]1[O:31][C@H:30]([C@H:32]([CH2:34][OH:35])[OH:33])[C:28]([O-:29])=[C:26]1[OH:27].[NH2:1][C:2]1[N:7]=[C:6]([NH2:8])[C:5]([CH2:9][C:10]2[C:15]3[CH:16]=[CH:17][CH2:18][O:19][C:14]=3[C:13]([O:20][CH3:21])=[C:12]([O:22][CH3:23])[CH:11]=2)=[CH:4][N:3]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To 2,4-diamino-5-(7,8-dimethoxy-2H-1-benzopyran-5-ylmethyl)pyrimidine (5.00 g, 15.9 mmol) in 450 mL of boiling methanol was added a solution of L (+)-ascorbic acid (2.80 g, 15.9 mmol) in 50 mL of methanol. The solution was treated with charcoal, filtered, and evaporated to dryness. Further drying at 40° C. in a vacuum oven gave 7.58 g (97.2%) of the title compound. Anal. Calcd for C16H18H4O3.C6H8O6.H2O: C, 51.97; H, 5.55; N, 11.02. Found: C, 51.95; H, 5.57; N, 11.02.
Aufarbeitung
- filtrationfiltered
- customevaporated to dryness
- customFurther drying at 40° C. in a vacuum oven
Quellen und Nachweise
- ORD-Eintrag
- ord-48cd5ce1833a474c94a5f8f0bde048e8
- Quelldatensatz
- uspto-grants-1988_08
- Patentnummer
- US04761475
Verknüpfte Notizen
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