Diisopropylethylamine → HCID 178512405, compound

Participants

Reaction Conditions

Reaction Steps

To a test tube containing 3-fluoro-4-(pyrrolo[2,1-f][1,2,4]triazin-4-yloxy)benzenamine (20 mg, 0.082 mmol) and 1-(2-(4-fluorophenyl)acetyl)-2-methylisothiourea (20 mg, 0.086 mmol) was added 0.3 mL of toluene followed by diisopropylethylamine (15 μL, 0.086 mmol). The reaction was stirred at 110° C. for 6 h. Additional portions of 1-(2-(4-fluorophenyl)-acetyl)-2-methylisothiourea (20 mg, 0.086 mmol) and diisopropylethylamine (15 μL, 0.086 mmol) were added. After stirring at 110° C. overnight, the reaction was cooled to room temperature and purified directly by flash chromatography on silica gel (SiO2, EtOAc/Hexane 1:1) to give the title compound as a white solid. The solid was treated with 4 N HCl in dioxane at 0° C. for 30 min. The solution was concentrated in vacuo to give the HCl salt of the title compound (15 mg, 40%) as a white powder. 1H NMR (CDCl3) δ 13.8 (br s, 1H), 11.5 (br s, 1H), 9.48 (br s, 1H), 7.85 (s, 1H), 7.78 (dd, 1H, J=2.5, 1.4 Hz), 7.30 (m, 5H), 7.01 (m, 3H), 6.85 (m, 1H); MS(ESI+) m/z 423.1 (M+H)+.

Provenance & Evidence