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.
Imino-Indeno[1,2-c] quinoline derivatives, their preparation processes, and pharmaceutical compositions comprising the same
申请人:Tzeng Cherng-Chyi
公开号:US20090111987A1
公开(公告)日:2009-04-30
Disclosed herein are novel imino-indeno[1,2-c]quinoline derivatives of formula (I):
or a pharmaceutically acceptable salt or solvate thereof,
wherein each of the substituents is given the definition as set forth in the Specification and Claims.
Also disclosed are the preparation processes of these derivatives, their synthetic precursors and their uses in the manufacture of pharmaceutical compositions for use in the treatment of cancers.
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.