Dichloromethane → HCID 178521092, compound

Participants

Reaction Steps

(R)—N-benzyl-1-(5-(benzyloxymethyl)-4-methoxy-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-N-((2,2-dimethyl-1,3-dioxolan-4-yl)methyl)methanamine (0.6 g, 1.194 mmol) was heated to 100° C. in HCl (15 ml, 37%) for 3 h. Tlc (CH2Cl2-6M NH3 in MeOH, 9:1) showed reaction over. The solvent was evaporated and the residue dissolved in MeOH, neutralized with Amberlyst A21 resin, filtered and the solvent evaporated. The residue was chromatographed (CH2Cl2-6M NH3 in MeOH, 9:1 then 85:15) to give (R)-3-(benzyl((4-hydroxy-5H-pyrrolo[3,2-d]pyrimidin-7-yl)methyl)amino)propane-1,2-diol (0.36 g, 1.096 mmol, 92% yield) as a colourless solid. [α]D22 +13.0 (c 0.715, MeOH). 1H NMR (CD3OD, 300 MHz), δ ppm, 7.90 (s, 1H), 7.37 (s, 1H), 7.31-7.16 (m, 5H), 3.97-3.78 (m, 3H), 3.69 (d, 1H, J 13.8 Hz), 3.63 (d, 1H, J 13.8 Hz), 3.50 (dd, 1H, J 11.2, 4.8 Hz), 3.42 (dd, 1H, J 11.2, 5.7 Hz), 2.60 (d, 2H, J 6.4 Hz). 13C NMR (CD3OD, 75.5 MHz), δ ppm, 156.1 (C), 145.5 (C), 142.5 (CH), 140.2 (C), 130.2 (CH), 129.4 (CH), 129.2 (CH), 128.1 (CH), 119.3 (C), 115.0 (C), 70.6 (CH), 66.3 (CH2), 60.0 (CH2), 57.6 (CH2), 49.0 (CH2). +ESMS Found 329.1600 C17H21N4O3 (M+H)+ requires 329.1614.

Provenance & Evidence