| 摘要 |
<p>The invention provides a novel series of tetracyclic quinoline and quinoxaline carboxamides, bis compounds in which two of the tetracyclic compounds are joined by a linker, and pharmaceutically-acceptable salts and N-oxides thereof, which have the ability to inhibit topoisomerase activity. The compounds are active in vitro and in vivo against tumour cells. Methods of synthesis and pharmaceutical compositions are also claimed.</p> |
