Caged xanthones are a class of natural compounds with approximately 200 members that commonly isolated from the Garcinia genus in Clusiaceae (formerly Guttiferae) family. They often characterized by notable 4-oxa-tricyclo[4.3.1.0 3,7 ]dec-2-one (caged) architecture common xanthone backbone. Because most caged have potent anticancer properties, they become target interest product chemistry. The ...