1,3-Dibromopropane → HCID 67115624, compound

Participants

Reaction Steps

9-(3-Bromopropyl)-8-(7-iodo-2,3-dihydrobenzo[b][1,4]dioxin-6-ylthio)-9H-purin-6-amine (S9-5). A mixture of S9-3 (0.213 g, 0.5 mmol), 1,3-dibromopropane (0.512 g, 2.5 mmol) and Cs2CO3 (0.184 g, 0.75 mmol) in anhydrous DMF (6 mL) was stirred at room temperature for 3 h. Solids were filtered and the filtrate was condensed under reduced pressure to give a residue that was purified by preparative thin layer chromatography (CHCl3:MeOH—NH3 (7N), 20:1) to give S9-5 (0.104 g, 38%). 1H NMR (CDCl3, 500 MHz) δ 8.26 (s, 1H), 7.32 (s, 1H), 6.94 (s, 1H), 5.6 (br s, 2H), 4.27 (t, J=7.0 Hz, 2H), 4.10-4.17 (m, 4H), 3.32 (t, J=7.0 Hz, 2H), 2.26 (m, 2H); MS (ESI) m/z 547.9/549.8 [M+H]+.

Provenance & Evidence