The invention belongs to the field of
medicinal chemistry, and particularly relates to a 3, 8-dyhydroxyl-6H-benzo [c] chromene-6-
ketone 8-site hydroxyl etherified derivative of a
phosphodiesterase 2 inhibitor and application of the 3, 8-dyhydroxyl-6H-benzo [c] chromene-6-
ketone 8-site hydroxyl etherified derivative. The 3, 8-dyhydroxyl-6H-benzo [c] chromene-6-
ketone 8-position hydroxyl etherified derivative is shown in the specification. According to the invention, 2-bromo-5-hydroxy-
benzoic acid is used as a
raw material, and etherification,
hydrolysis and cyclization are carried out to obtain a final product. The purposes of reducing the reaction time, improving the product purity and improving the reaction yield are achieved by improving the
reaction temperature, adjusting the catalyst concentration and optimizing the purification method. Meanwhile, the compound obtained by the invention has good PDE2 inhibitory activity. # imgabs0 #