公开(公告)号：US5081121A

公开(公告)日：1992-01-14

申请号：US356370

申请日：1989-05-23

申请人： Tatsushi Osawa ,  Hideo Ohta ,  Kohji Akimoto ,  Katsuhiko Harada ,  Hiroshi Soga ,  Yasuhiro Jinno

发明人： Tatsushi Osawa ,  Hideo Ohta ,  Kohji Akimoto ,  Katsuhiko Harada ,  Hiroshi Soga ,  Yasuhiro Jinno

IPC分类号： C07D215/22 ,  C07D215/233 ,  C07D215/26 ,  C07D215/36 ,  C07D215/38 ,  C07D215/48 ,  C07D215/56 ,  C07D401/12 ,  C07D405/12 ,  C07D409/12 ,  C07D491/04

CPC分类号： C07D215/233 ,  C07D215/26 ,  C07D215/36 ,  C07D215/38 ,  C07D215/48 ,  C07D215/56 ,  C07D401/12 ,  C07D405/12 ,  C07D409/12 ,  C07D491/04

摘要： Quinolone derivatives having a quinolone structure: ##STR1## where Yo is O or S are disclosed, which are useful as cardiotonic agents. Typical examples of the quinolone derivatives include: 6,7-dimethoxy-4 (1H) quinolone (compound 6) and 5-hydroxy-6-methoxy-4(1H) quinolone (compound 1) as typical compounds of the formulae[I] and [I'], respectively, shown in the specification.