1-Propanol → HCID 22854550, Verbindung
Reaktionsgleichung
Cl[C:2]1[N:3]=[C:4]([NH:20][N:21]2[CH2:26][CH2:25][CH2:24][CH2:23][CH2:22]2)[C:5]2[N:6]=[CH:7][N:8]([C:18]=2[N:19]=1)[C@@H:9]1[O:17][C@H:14]([CH2:15][OH:16])[C@@H:12]([OH:13])[C@H:10]1[OH:11].[OH-].[Na+].[CH2:29]([OH:32])[CH2:30][CH3:31]>>[N:21]1([NH:20][C:4]2[C:5]3[N:6]=[CH:7][N:8]([C:18]=3[N:19]=[C:2]([O:32][CH2:29][CH2:30][CH3:31])[N:3]=2)[C@@H:9]2[O:17][C@H:14]([CH2:15][OH:16])[C@@H:12]([OH:13])[C@H:10]2[OH:11])[CH2:26][CH2:25][CH2:24][CH2:23][CH2:22]1Komponenten
4
Versuchsvorschrift
2-Chloro-N-(1-piperidinyl)adenosine (0.50 g, 1.3 mmol) (Example 5) was dissolved in a solution of sodium hydroxide (0.51 g, 1.3 mmol) in 1-propanol (15 ml), and the solution was heated at reflux for 4.5 hours, after which time TLC investigation showed that the starting material had been consumed. The reaction mixture was evaporated and the resultant residue was dissolved in water. The solution was neutralized with 4N aqueous hydrochloric acid and extracted with dichloromethane (3×50 ml). The combined extracts were dried (MgSO4) and evaporated to an oil which was triturated with diethyl ether to afford a fawn foam. This foam was purified by column chromatography on silica gel (2×20 cm); elution with a mixture of dichloromethane/ethanol 25% aqueous ammonia solution (60/10/1) provided the title compound (0.20 g, 37%) as a semi-solid foam; 1H NMR (400 MHz, Me2SO-d6) δ3.54, 3.65 (2H, ABX, H-5'a and H-5'b), 3.92 (1H, q, H-4'), 4.15 (1H, q, H-3'), 4.60 (1H, q, H-2'), 5.80 (1H, d, H-1'), 8.16 (1H, s, H-8).