3-(bromomethyl)-5-methyl-7H-furo[3,2-g]chromen-7-one

4-((4-methoxyphenylimino)methyl)-2H-benzofuro[3,2-g]chromen-2-one

malonic acid methyl ester 3'-(4-methyl-2-oxo-2H-chromen-7-yloxy)-propyl ester

7-(tert-butoxycarbonylmethoxy)coumarin-4-carbaldehyde

7-(p-tolylamino)-4-methyl-2H-chromen-2-one