Water → HCID 25106547, compound

Participants

Reaction Steps

According to Scheme 7 Step 3: A suspension of 11(B) (500 mg, 1.8 mmol), 4-chlorobenzyl bromide (455 mg, 2.2 mmol) and potassium carbonate (510 mg, 3.7 mmol) in CH3CN (10 mL) was stirred 12 h under reflux. The mixture was cooled at room temperature and 100 mL of water were added. The aqueous layer was extracted thrice with DCM (100 mL). The organic layers were mixed, dried over MgSO4, filtered and concentrated under reduced pressure to afford a brown solid. The crude solid was purified by flash chromatography with silica gel (AIT Flashmart prepacked column 50 g SiO2) using CH2Cl2/MeOH (98/2) as eluant to afford N-(3-(4-(4-chlorobenzyl)-6-cyano-3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl)acetamide 11(C) (460 mg, 63%) as a beige solid.

Provenance & Evidence