5,11,17,23-Tetra-tert-butyl-25, 27-bis(7′-methoxycoumarin-3′-methyloxy)-26, 28-dihy- droxycalix[4]arene was synthesized and characterized. The derivative coul
A series of novel ligustrazine derivatives were synthesized. These compounds have not been reported in literature, and their chemical structures were confirmed
A novel flavone glycoside named 3’’’-carbonyl-2’’-β-L-quinovosyl icariside II was isolated from the aerial parts of Epimedium koreanum. Its chemical struc