Design, synthesis and biological evaluation of novel perimidine o-quinone derivatives as non-intercalative topoisomerase II catalytic inhibitors
摘要:
For the development of novel anticancer agents, we designed and synthesized a total of 37 perimidine o-quinone derivatives containing the o-quinone group at the A or B ring and different substituents (alkyl groups, aryl groups or heterocycles) at the C ring of the compounds. The structure-activity relationships (SARs) were established based on the cytotoxicity data of compounds from the HL-60, Huh7, Hct116, and Hela cell lines. The cytotoxicity results showed that most compounds exhibited potent cytotoxicity. In particular, compound b-12 showed the best anti-proliferative activity (IC50 <= 1 mu M) against four cancer cell lines and strong potency against the HL-60/MX2 (0.47 mu M) cell line, which is resistant to Topo II poisons. Further studies showed that b-12 exhibited potent Topo II alpha inhibitory activity (IC50 = 7.54 mu M) compared with Topo I, which acted as a class of non-intercalative Topo IIa catalytic inhibitor by inhibiting the ATP binding site of Topo II. Cell apoptosis and cell cycle assays confirmed that b-12 could induce the apoptosis of Huh7 cells in a dose-dependent manner.
Design, synthesis and biological evaluation of novel perimidine o-quinone derivatives as non-intercalative topoisomerase II catalytic inhibitors
摘要:
For the development of novel anticancer agents, we designed and synthesized a total of 37 perimidine o-quinone derivatives containing the o-quinone group at the A or B ring and different substituents (alkyl groups, aryl groups or heterocycles) at the C ring of the compounds. The structure-activity relationships (SARs) were established based on the cytotoxicity data of compounds from the HL-60, Huh7, Hct116, and Hela cell lines. The cytotoxicity results showed that most compounds exhibited potent cytotoxicity. In particular, compound b-12 showed the best anti-proliferative activity (IC50 <= 1 mu M) against four cancer cell lines and strong potency against the HL-60/MX2 (0.47 mu M) cell line, which is resistant to Topo II poisons. Further studies showed that b-12 exhibited potent Topo II alpha inhibitory activity (IC50 = 7.54 mu M) compared with Topo I, which acted as a class of non-intercalative Topo IIa catalytic inhibitor by inhibiting the ATP binding site of Topo II. Cell apoptosis and cell cycle assays confirmed that b-12 could induce the apoptosis of Huh7 cells in a dose-dependent manner.
A Cobalt Catalyst Permits the Direct Hydrogenative Synthesis of 1
<i>H</i>
‐Perimidines from a Dinitroarene and an Aldehyde
作者:Tobias Schwob、Mirco Ade、Rhett Kempe
DOI:10.1002/cssc.201900498
日期:2019.7.5
A new sustainable catalytic reaction, the synthesis of 1H‐ perimidines from a dinitroarene and an aldehyde in the presence of H2, was achieved. An earth‐abundant metal catalyst was developed to permit the efficient, highly chemoselective, and consecutive hydrogenation of dinitroarenes. The catalyst was reusable and easy to handle. The use of a specific Co complex and its pyrolysis at a certain temperature
Arylidene Meldrum's acid is employed as a source of the arylgroup and oxidant for the synthesis of 2-aryl-1H–benzimidazoles by a condensation reaction with 1,2-phenylenediamine in refluxing ethanol with good to high yields. Arylidene Meldrum's acids were also used as a source of the arylgroup and oxidant for the synthesis of 2-aryl-1H-perimidines by a condensation reaction with 1,8-diaminonaphthalene
For the development of novel anticancer agents, we designed and synthesized a total of 37 perimidine o-quinone derivatives containing the o-quinone group at the A or B ring and different substituents (alkyl groups, aryl groups or heterocycles) at the C ring of the compounds. The structure-activity relationships (SARs) were established based on the cytotoxicity data of compounds from the HL-60, Huh7, Hct116, and Hela cell lines. The cytotoxicity results showed that most compounds exhibited potent cytotoxicity. In particular, compound b-12 showed the best anti-proliferative activity (IC50 <= 1 mu M) against four cancer cell lines and strong potency against the HL-60/MX2 (0.47 mu M) cell line, which is resistant to Topo II poisons. Further studies showed that b-12 exhibited potent Topo II alpha inhibitory activity (IC50 = 7.54 mu M) compared with Topo I, which acted as a class of non-intercalative Topo IIa catalytic inhibitor by inhibiting the ATP binding site of Topo II. Cell apoptosis and cell cycle assays confirmed that b-12 could induce the apoptosis of Huh7 cells in a dose-dependent manner.