betulic acid 第1页

Studies on the Chemical Constituents of Acanthopanax senticosus (Rupt. et Maxim.) Harms Determination of triterpenoic acids in fruits of Ziziphus jujuba using HPLC-MS with polymeric ODS column STUDIES ON THE CHEMICAL CONSTITUENTS OF THE BARK OF TETRACENTRON SINENSE Chemical Constituents of Coleus carnosifolius Dunn. STUDIES ON THE CHEMICAL CONSTITUENTS FROM SYCOPSIS TUTCHERII Isolation and Identification of Chemical Constituents from Hedyotis chrysotricha (Palib.) Merr. Chemical constituents of triterpenoids from Prunella vulgaris and their antitumor activities