Diisopropylethylamine → HCID 178483545, compound

Participants

Reaction Conditions

Reaction Steps

1-(3,5-Diamino-6-chloropyrazine-2-carbony)-2-methylisothiourea hydriodide (292 mg, 0.75 mmol) 5 was added to a solution of compound 4 (200 mg, 0.65 mmol), DIPEA (0.39 mL, 2.25 mmol), and ethanol (5 mL). The reaction mixture was stirred at 65° C. for 3 h. The solvent was removed under reduced pressure and the residue was purified by preparative TLC (80:18:2 dichloromethane/methanol/concentrated ammonium hydroxide, v/v) to provide 6 (190 mg, 56%) as a light yellow solid. 1H NMR (300 MHz, CD3OD) δ 1.65 (m, 6H), 2.15 (s, 6H), 2.32 (m, 2H), 2.64 (m, 2H), 3.27 (m, 8H), 4.49 (s, 2H), 6.89 (d, 2H), 7.15 (d, 2H). m/z (ESI) 520.

Provenance & Evidence