Jinxiong Chen

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OBJECTIVE To investigate the chemical constituents of the roots of Periploca forrestii and evaluate their cytotoxicity activities. METHOD Silica gel column chromatography was employed for the isolation and purification of chemical constituents. The structures were identified on the basis of spectral data and the cytotoxicities of compounds 2-4 were(More)
Two new tirucallane triterpenoids, 24,25-epoxy-3 β-hydroxy-20-oxo-7-tirucallene (1) and 22,23;24,25-diepoxy-3 β-hydroxy-7-tirucallene (2), and a new tetranortriterpenoid, 4 α-hydroperoxy-6- O-acetylnimbandiol (3), along with eight known compounds, were isolated from the branches and leaves of Azadirachta indica. Their structures were elucidated through(More)
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