<正>A new triterpenoid saponin, named codonolaside (1) was isolated from the root of Codonopsis lanceolata.Its structure was determined by analysis of its spect
A series of tyrosinase model ligands and complexes containing polyimidazoles were prepared. 2, 4-Di-tert-butyl-phenol was ortho-hydroxylated by the binuclear co