HCID 59235234, compound → HCID 59235235, compound

Participants

Reaction Steps

500 mg 4-[1-(3,4-dichlorophenyl)-2,5-dioxo-4-(4-hydroxyphenyl)-4-methylimidazolidin-3-yl]-2-butynyl acetate (the product of Example 223) are dissolved in 10 mL of a 2 N ethanol/HCl mixture (70/30). The mixture is stirred under reflux for 3 hours then concentrated and dried under vacuum. 400 mg of a white solid are obtained (Yd=99%).

Provenance & Evidence