Diisopropylethylamine → HCID 178426290, compound

Participants

Reaction Steps

To a stirred solution of 6-chloro-2-fluoropurine (0.4 g, 2.3 mmol) in n-BuOH (50 ml) under an argon atmosphere at 0° C., was added DIEA (2.5 ml, 14.7 mmol) followed by (3-methylpyridin-2-yl)methanamine (0.36 g, 2.95 mmol). The reaction mixture was stirred at this temperature for 1 h and then allowed to return to room temperature and stirred for 4 h, it was still seen incomplete, hence heated the reaction to 100° C. and left at that temperature for 8 h. The solvent was evaporated in vacuo and the residue was purified by gradient column chromatography on silica gel, eluted with CHCl3:MeOH (100:0→90:10), to afford the product as a white solid; Yield: 0.3 g (51%). δH (CDCl3, 500 MHz) 2.35 (3 H, s, CH3), 4.71 (3 H, m, NH and NHCH2), 7.24 (1 H, s, br, ArH), 7.63 (1 H, s, br, ArH), 8.28 (1 H, s, br, ArH), 8.38 (1 H, s, br, ArH); δC (CDCl3, 500 MHz) 161.03 (C), 158.49 (C), 154.77 (C), 152.16 (C), 144.86 (CH), 137.53 (CH), 137.14 (CH), 130.67 (C), 121.58 (CH), 118.73 (C), 42.87 (CH2), 18.16 (CH3); m/z 259.3 (M+H)

Provenance & Evidence