作者:Juha P. Heiskanen、Walaa A. E. Omar、Mari K. Ylikunnari、Kirsi M. Haavisto、Maria J. Juan、Osmo E. O. Hormi
DOI:10.1021/jo062175i
日期:2007.2.1
Quinolines with a hydroxyl group at the 8-position and an alkoxy group at the 4-position are rare compounds. In this paper the synthesis of five 4-alkoxy-8-hydroxyquinolines is reported. The key reaction in the synthetic route is a selective protection of the hydroxyl group at C-atom 8 in 4,8-dihydroxyquinoline with a tosyl group and the hydrolytic removal of the protective group after the alkylation. The tosyl group is stable during the alkylations with various alkylating agents in the presence of sodium hydride.
Quinolines and Oxazino-quinoline Derivatives as Small Molecule GLI1 Inhibitors Identified by Virtual Screening
A virtual screening approach based on a five-feature pharmacophoric model for negative modulators of GLI1 was applied to databases of commercially available compounds. The resulting quinoline derivatives showed significant ability to reduce the GLI1 protein level and were characterized by submicromolar antiproliferative activity toward human melanoma A375 and medulloblastoma DAOY cell lines. Decoration