Discovery of Indeno[1,2-c]quinoline Derivatives as Inhibitors of Osteoclastogenesis Induced by Receptor Activator of NF-κB Ligand (RANKL)
摘要:
Certain indeno[1,2-c]quinolines were synthesized and evaluated for antiosteoclastogenic activities. Among them, 6,9-dimethoxy-11H-indeno[1,2-c]quinolin-11-one (8a) and 9-methoxy-6-(methylthio)-11H-indeno[1,2-c]quinolin-11-one (16a) inhibited RANKL-induced osteoclast formation in Raw 264.7 cells with an IC50 of 2.00 and 2.58 mu M, respectively. Compound 8a was only weakly active in the inhibition of the: RANKL-induced NFAT activation; while 16a was inactive. These results indicated that the antiosteoclastogenic effect of 8a is only; partly related while 16a is not related to the suppression of NFAT.
Certain indeno[1,2-c]quinolines were synthesized and evaluated for antiosteoclastogenic activities. Among them, 6,9-dimethoxy-11H-indeno[1,2-c]quinolin-11-one (8a) and 9-methoxy-6-(methylthio)-11H-indeno[1,2-c]quinolin-11-one (16a) inhibited RANKL-induced osteoclast formation in Raw 264.7 cells with an IC50 of 2.00 and 2.58 mu M, respectively. Compound 8a was only weakly active in the inhibition of the: RANKL-induced NFAT activation; while 16a was inactive. These results indicated that the antiosteoclastogenic effect of 8a is only; partly related while 16a is not related to the suppression of NFAT.