Iodoethane → HCID 326140, compound

Participants

Reaction Steps

To a solution of 8-chloro-1-methyl-7-(2-propen-1-yl)-3,7-dihydro-1H-purine-2,6-dione (100 mg, 0.42 mmol) in anhydrous DMF (3 ml) was added sodium carbonate (58 mg, 0.54 mmol), after 10 minutes stirring ethyl iodide (0.043 ml, 0.54 mmol) was added and the reaction mixture stirred at room temperature under nitrogen for 90 hours. Pd(PPh3)4 (73 mg, 0.063 mmol) was then added and the reaction vessel evacuated and flushed with nitrogen (×3), morpholine (0.37 ml, 4.3 mmol) was added and stirring at room temperature under nitrogen continued for 4 hours. The reaction mixture was diluted with EtOAc (25 ml) and washed with 2M HCl aq. (25 ml). The organic extract was dried (MgSO4) filtered and evaporated. Purification by aminopropyl SPE (5 g) loading the compound and washing with MeOH before eluting the product with 5% AcOH/MeOH afforded the title compound as a white solid (67 mg, 70%). NMR; dH (400 MHz, d6-DMSO) 1.20 (t, 3H, J=7 Hz), 3.22 (s, 3H), 3.97 (q, 2H, J=7 Hz), 14.46 (1H, br s); m/z 227.2 [M-H]−.

Provenance & Evidence