反应详情

Material from Example 3 was heated at reflux in a solution of ethanol/sulfuric acid for 18 h. The solution was concentrated to removed the ethanol and the resulting aqueous solution was extracted with chloroform to yield the title compound. ESMS (M+H)+=388.2.

1. concentrationThe solution was concentrated
2. customto removed the ethanol
3. extractionthe resulting aqueous solution was extracted with chloroform