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| 1 | Actinolactomycin,a New 2-Oxonanonoidal Antitumor Antibiotic Produced by Streptomyces flavoretus 18522,and its Inhibitory Effect on the Proliferation of Human Cancer Cells显示文摘Actinolactomycin 1, a new 2-oxonanonoidal antitumor antibiotic, was isolated from the fermentation broth of Streptomyces flavoretus 18522 through a bioassay-guided separation procedure. The structure of 1 was determined as 4,7-dihydroxy-3,9-dimethyl-2-oxonanone by the spectroscopic methods. Compound 1 inhibited the proliferation of A2780, K562, HCT-15, A549 and HeLa cells with the IC50 values of 1.4 ± 0.4 μmol/L, 8.4 ± 4.7 μmol/L, 9.4 ± 2.2 μmol/L, 15.4 ± 5.6 μmol/L and 13.7 ± 2.0 μmol/L, respectively. Flow cytometric analysis indicated that 1 could inhibit the cell cycle of tsFT210, A2780 and K562 cells mainly at the G0/G1 phase and could also induce apoptosis in K562 cells. | BingHAN ChengBinCUI BingCAI XiuFengJI XinShengYAO | 2005 | Chinese Chemical Letters2005，16，4： | 8 |
| 2 | Pterocarine, a New Diarylheptanoid from Pterocarya tonkinesis, its Cell Cycle Inhibition at G_0/G_1 Phase and Induction of Apoptosis in HCT-15 and K562 Cells显示文摘Pterocarine (1), a new diarylheptanoidal compound, was isolated from Pterocaryatonkinesis (Franch.) Dode. together with a known diarylheptanoid, myricatomentogenin (2), througha bioassay-guided fractionation procedure. The structure of 1 was elucidated as (+)-3’, 4’’-epoxy-1-(4’-hydroxyphenyl)-7-(3’’-hydroxyphenyl)-heptane-3-one by the spectroscopic methods.Pterocarine (1) inhibited the proliferation of tsFT210, HCT-15 and K562 cells with the inhibitionrates of 20.2±2.4, 23.8±2.4 and 50.5±1.2% at 100 μg/mL, respectively. Flow cytometric analysisindicated that 1 could inhibit the cell cycle of tsFT210, HCT-15 and K562 cells at the G0/G1 phaseand could also induce apoptosis in HCT-15 (19%) and K562 (11%) cells. | HongBingLIU ChengBinCUI BingCAI QianQunGU DongYunZHANG QingChunZHAO HuaShiGUAN | 2005 | Chinese Chemical Letters2005，16，2： | 3 |
| 3 | A New Furostanol Saponin from the Water-extract of Dioscorea nipponica Mak.,the Raw Material of the Traditional Chinese Herbal Medicine Wei Ao Xin显示文摘O-a-D-Glucopyranosyl-furost-5(6),20(22)-dien-3a,26-diol 1, a new furostanol saponin, was isolated from the water-extract of Dioscorea nipponica Mak., the raw material of a traditional Chinese herbal medicine Wei Ao Xin. The structure of 1 was determined on the basis of its spectral data especially by NMR spectroscopy. The result provides the first example of naturally occurring furostanol saponins with a single saccharide chain at the C-26 position. | ChengBinCUI ChiXU QianQunGU ShiDongCHU HaiHongJI GangJING | 2004 | Chinese Chemical Letters2004，15，10： | 1 |
| 4 | A New Polyphenolic Compound from Rubus aleaefolius and Its Inhibitory Activity on Mammalian Cell Cycle at G_0/G_1 Phase显示文摘Rubuphenol (1), a new polyphenolic compound, was isolated together with the known ellagic acid (2) as new cell cycle inhibitors from Rubus aleaefolius Poir. through a bioassay-guided separation procedure and the structure of 1 was elucidated by spectroscopic method. Compounds 1 and 2 inhibited the cell cycle of tsFT210 cells at the G0/G1 phase respectively with the MIC values of 14.6 mM and 10.3 mM. | ChengBinCUI QingChunZHAO 等 | 2002 | Chinese Chemical Letters2002，13，4： | 0 |
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