The Chemical Constituents And Antibacterial Activities Of Sida Szechuensis And Ophiorrhiza Cantoniensis

This dissertation is composed of two chapters. The first chapter elaborated the study on chemical constituents of Sida szechuensis Matsuda. The second chapter described the isolation and identification of the chemical components from Ophiorrhiza cantoniensis.From above mentioned plants, 13 compounds were isolated and identified on the basis of spectral evidences.The anti-microbial activity of the extracts and chemical constituents from S.