Reaction Steps
The reaction was performed with 2-iodo-8-benzylaminoadenosine (11, 230 mg, 0.46 mmol) and 1-hexyn (2.23 mmol). The mixture was purified by column chromatography (EtOAc). Yield 146 mg (0.32 mmol, 70%), mp 141–143÷C; Rƒ 0.26 (5% MeOH in EtOAc); 1H NMR (DMSO-d6) δ 7.64 (t, 1H, J=6.10 Hz, NH), 7.36–7.18 (m, 5H, phenyl), 6.59 (bs, 2H, NH2), 5.92 (d, 1H, J=7.71 Hz, H-1′), 5.77 (t, 1H, J=4.85 Hz, OH-2′), 5.32 (d, 1H, J=6.74 Hz, OH-5′), 5.18 (d, 1H, J=4.18 Hz, OH-3′), 4.64 (q, 1H, J=4.64 Hz, H-2′), 4.58 (t, 2H, J=4.65 Hz, NHCH2), 4.09 (t, 1H, J=4.09 Hz, H-3′), 3.98 (d, 1H, J=1.60 Hz, H-4′), 3.62 (q, 2H, J=2.58 Hz, H-5′), 2.36 (t, 2H, J=6.92 Hz, ≡CCH2), 1.55–134 (m, 4H, CH2CH2), 0.89 (t, 3H, J=7.11 Hz, CH3); MS m/z 453 (M+H)+; Anal. (C23H28N6O4) C, H, N.
