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Peng Liao,Shi-Qin Hu,Hong Zhang,Liang-Bi Xu,Jing-Zi Liu,Bin He,Shang-Gao Liao,Yong-Jun Li 대한화학회 2018 Bulletin of the Korean Chemical Society Vol.39 No.3
In our previous studies, we have shown that thiourea compounds containing phosphate esters have potent antitumor activity and can be used as a novel strategy for the development of antitumor agents. Herein, a series of novel phosphonate thioureas 5–38 have been synthesized, which were fully characterized by 1H NMR, 13C NMR spectrum, elemental analysis. Three human cancer cell lines (Bcap-37, BGC-823, and PC-3) have been used to investigate these compounds’ antitumor activities. After the summarization of the structure–activity relationships, we found that the variation of R, R1, and R2 in these novel phosphonate thioureas contribute to the antitumor activities. All these SAR-guided efforts may lead to novel antitumor drugs in the market in the near future.
Structure and bioactivity of triterpenoids from the stems of Schisandra sphenanthera
Cheng-Qin Liang,Rong-Hua Luo,Ju-Ming Yan,Yan Li,Xiao-Nian Li,Yi-Ming Shi,Shan-Zhai Shang,Zhong-Hua Gao,Liu-Meng Yang,Yong-Tang Zheng,Wei-Lie Xiao,Hong-Bin Zhang,Han Dong Sun 대한약학회 2014 Archives of Pharmacal Research Vol.37 No.2
Two new triterpenoids, schisphendilactoneA and B (1 and 2), together with three known triterpenoids,were isolated from the stems of Schisandra sphenanthera. Their structures were elucidated by spectroscopic methods,and the absolute configuration of 1 was determined bysingle-crystal X-ray diffraction. Compound 2 showedmoderate inhibitory activity against SW480 cancer cellline, and compound 5 exhibited promising anti-HIV-1activity with EC50 value of 0.52 lg ml-1 and therapeuticindex value of 117.12.
Phenolic constituents from Parakmeria yunnanensis and their anti-HIV-1 activity
Shan-Zhai Shang,Huan Chen,Cheng-Qin Liang,Zhong-Hua Gao,Xue Du,Rui-Rui Wang,Yi-Ming Shi,Yong-Tang Zheng,Wei-Lie Xiao,Han Dong Sun 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.10
Three new phenolic compounds, yunnanensinsA–C (1–3), together with fourteen known ones (4–17),were isolated from the leaves and stems of Parakmeriayunnanensis. The structures of new compounds wereestablished on the basis of extensive spectroscopic analyses. Several compounds showed weak anti-HIV-1 activity.