Acetic Acid → HCID 67176840, compound

Participants

Reaction Steps

To a solution of 7 (0.025 g, 0.023 mmol) in 2 mL methanol was added 0.020 mL acetic acid and sodium iodide (0.017 g, 0.113 mmol), followed by N-chlorosuccinimide (0.025 g, 0.187 mmol). After 20 min at room temperature, the solvent was removed under a stream of nitrogen. A solution of TFA in CH2Cl2 (1:1, 2 mL) was then added to the residue. After 1 h at room temperature, 8 (0.008 g, 62%) was isolated by HPLC (Econosphere C18 10μ., 250×10 mm, H2O/CH3CN/TFA (85/15/0.1), 4 mL/min, product peak eluting at 10 min). 1H NMR (400 MHz, D2O) δ 9.00-9.15 (m, 3H), 4.18-4.24 (m, 2H), 3.40-3.41 (m, 2H), 2.45-2.49 (m, 2H), 2.12-2.13 (m, 1H), 1.85-1.97 (m, 2H), 1.64-1.73 (m, 3H), 1.44 (m, 2H). ESI-Mass calcd for C18H24IN4O8 [M+H]+ 551.1, found 551.0. FAB-HRMS calcd for C18H24IN4O8 [M+H]+ 551.0639, found 551.0607.

Provenance & Evidence