Phytochemical investigation of Lagotis yunnanensis led to the isolation andidentification of a new iridoid glucoside 1, named as 10-O-(3, 4-dimethoxy-(E)-cinnam
A novel dihydroxyl azacrown ether chitosan was synthesized by reacting dihydroxyl azacrown ether with epoxy activated chitosan. The adsorption property of the
Four new oleanane triterpene saponins were isolated and purified from the whole plant ofClinopodium urticifolium. They were 3β, 16β, 23, 28-tetrahydroxyoleana