75311-87-4Relevant academic research and scientific papers
Synthesis and antitumor evaluation of symmetrical 1,5-diamidoanthraquinone derivatives as compared to their disubstituted homologues
Huang, Hsu-Shan,Chiu, Hui-Fen,Tao, Chi-Wei,Chen, In-Been
, p. 458 - 464 (2006)
A series of symmetrical 1,5-diamidoanthraquinone derivatives with potentially bioreducible groups has been synthesized and their cytostatic activity against the panel of various cancer cell lines in vitro has been studied. Preliminary structure-activity relationships were established. The results indicated that compounds 5 and 18 exhibited significant potent cytotoxicity at 1.24-1.75 μM for Hepa G2 cell line; compounds 5, 16, and 18 exhibited cytotoxicity at 0.14-1.82 μM for 2.2.15 cell line as determined by XTT colorimetric assay. Two structurally related compounds, mitoxantrone and adriamycin, were tested in parallel as positive controls. In addition, it was found that compounds 5 and 18 were a more potent and specific human hepatoma cell line than mitoxantrone and showed comparable activity to adriamycin. Among them, compound 18 was the most potent for 2.2.15 cells. We have demonstrated that the anthraquinone moiety is essential for activity and that less sterically hindered substituents contribute to enhanced in vitro efficacy. Implications for amidoanthraquinone cytotoxicity as potential anticancer agents are discussed. We further delineate the nature of the pharmacophore for this class of compounds, which provides a rational basis for the structure-activity relationships.
Synthesis and pharmaceuticals of novel bis-substituted anthraquinone derivatives
-
Page 12, (2008/06/13)
This invention relates to novel anthraquinone compounds useful in the treatment of allergic, inflammatory conditions, antioxidant, tumor condition, stem cell application, tissue engineering, applied in treating age-associate tissue degeneration, reverse organ failure in chronic high-turnover disease and therapeutic compositions containing such compounds. The compounds of the present invention are 1,4-, 1,5- and 1,8-difunctionalized anthraquinones or analogs thereof. According to the practice of the invention, there are provided bis-symmetrical substituted anthraquinone compounds according to formula I: wherein R1, R2, R3 and R4 present a straight, aminoalkylamino side chains or branched chain alkyl group having 1 to 6 carbons which may be substituted with one or more groups of R5, or R1, R2, R3 and R4 present phenyl or benzyl which may be substituted with one or two groups of R6; wherein R5 is selected from the group consisting of halogen, —RNH2, —RNH2R, —ROH, —NO2, —OCH3, —OCH2CH3, and —OCH2CH2CH3; and wherein R6 is selected from the group consisting of a straight or branched chain alkyl group having 1 to 4 carbons, halogen, —RNH2, —RNH2R, —ROH, —NO2, —OCH3, —OCH2CH3, —OCH2CH2CH3, —CH2Br, —CH2Cl, —CH2OH, —C(CH3)3, —(CH2)20H, —(CH2)3OH, —(CH2)4OH, —CH2NH2, —(CH2)2NH2, —(CH2)3NH2, —(CH2)4NH2, —(CH2)5NH2, —CH2N(CH3)2, —(CH2)2N(CH3)2, —(CH2)2NH(CH2)2OH, —(CH2)3NH(CH2)2OH, —(CH2)2NHCH2OH, —(CH2)3NHCH2OH, —CH2CH(CH3)2, —CHCl2, —CH(CH3)Cl, —(CH2)2Cl, —(CH2)3Cl, —(CH2)3Br, —(CH2)4Br, and —(CH2)4Cl. Chart 1. Activation of hTERT promoter-driven SEAP expression by c-Myc. About 1×107 hTERT-BJ1 cells were transfected with 13.5 μg each of plasmid pSEAP or pPhTERT-SEAP and of plasmid pMT2T or pMT2T-cMyc by electroporation. After 24 h, viable cells were harvested, and reinoculated at a density of 3×105/mL, and the SEAP activity after 24 h at 37 □. The transfection efficiency of each experiment was determined by cotransfection with 1.5 μg of plasmid pCMVβ. The values were determined from three experiments. P0.05 is presented by an asterisk.
