From our quantitative structure–activity relationship (QSAR) study on a large set of 6- aminoquinolones, which indicated that a group larger than methyl could be allocated at C-8 position, we have synthesized two new series of 6-aminoquinolones characterized by the presence of an ethyl or a methoxy group at C-8 position. The antibacterial evaluation shows that, while the 8-ethyl derivatives were devoid of any antibacterial activity, the introduction ...
[Lishchiner, I. I.; Plakhotnik, V. A.; Kuz'micheva, A. N.; Mortikov, E. S.; Borisov, Yu. A. Russian Chemical Bulletin, 1995 , vol. 44, # 8 p. 1428 - 1429 Izvestiya Akademi Nauk, Seriya Khimicheskaya, 1995 , # 8 p. 1486 - 1488]