Novel thienopyridine derivatives as specific anti-hepatocellular carcinoma (HCC) agents: Synthesis, preliminary structure–activity relationships, and in vitro biological evaluation
摘要:
Novel thienopyridine derivatives 1b-1r were synthesized, based on a hit compound 1a that was found in a previous cell-based screening of anticancer drugs. Compounds 1a-1r have the following features: (1) their anticancer activity in vitro was first reported by our group. (2) The most potent analog 1g possesses hepatocellular carcinoma (HCC)-specific anticancer activity. It can specifically inhibit the proliferation of the human hepatoma HepG2 cells with an IC(50) value of 0.016 mu M (compared with doxorubicin as a positive control, whose IC(50) was 0.37 mu M). It is inactive toward a panel of five different types of human cancer cell lines. (3) Compound 1g remarkably induces G(0)/G(1) arrest and apoptosis in HepG2 cells in vitro at low micromolar concentrations. These results, especially the HCC-specific anticancer activity of 1g, suggest their potential in targeted chemotherapy for HCC. (C) 2010 Elsevier Ltd. All rights reserved.
Facile Synthesis of 6-Aryl-3-cyanopyridine-2-(1H)-thiones from Aryl Ketones
摘要:
An improved synthesis of 6-aryl-3-cyanopyridine-2-(1H)-thiones utilizing enaminones as starting materials catalyzed by 1,4-diazabicyclo[2.2.2] octane (DABCO) was described. Moreover, a convenient one-pot conversion of aryl ketones to 6-aryl-3-cyanopyridine- 2-(1H)-thiones was also developed in moderate to good yields (up to 80%).
Facile Synthesis of 6-Aryl-3-cyanopyridine-2-(1<i>H</i>)-thiones from Aryl Ketones
作者:Ren-Lin Zheng、Xiu-Xiu Zeng、Hai-Yun He、Jun He、Sheng-Yong Yang、Luo-Ting Yu、Li Yang
DOI:10.1080/00397911.2010.541964
日期:2012.5.15
An improved synthesis of 6-aryl-3-cyanopyridine-2-(1H)-thiones utilizing enaminones as starting materials catalyzed by 1,4-diazabicyclo[2.2.2] octane (DABCO) was described. Moreover, a convenient one-pot conversion of aryl ketones to 6-aryl-3-cyanopyridine- 2-(1H)-thiones was also developed in moderate to good yields (up to 80%).
Novel thienopyridine derivatives as specific anti-hepatocellular carcinoma (HCC) agents: Synthesis, preliminary structure–activity relationships, and in vitro biological evaluation
Novel thienopyridine derivatives 1b-1r were synthesized, based on a hit compound 1a that was found in a previous cell-based screening of anticancer drugs. Compounds 1a-1r have the following features: (1) their anticancer activity in vitro was first reported by our group. (2) The most potent analog 1g possesses hepatocellular carcinoma (HCC)-specific anticancer activity. It can specifically inhibit the proliferation of the human hepatoma HepG2 cells with an IC(50) value of 0.016 mu M (compared with doxorubicin as a positive control, whose IC(50) was 0.37 mu M). It is inactive toward a panel of five different types of human cancer cell lines. (3) Compound 1g remarkably induces G(0)/G(1) arrest and apoptosis in HepG2 cells in vitro at low micromolar concentrations. These results, especially the HCC-specific anticancer activity of 1g, suggest their potential in targeted chemotherapy for HCC. (C) 2010 Elsevier Ltd. All rights reserved.