| 摘要 |
<p>Novel bicyclic heterocyclic sulfonamide and sulfonic ester derivatives represented by general formula (I) having an antitumor activity and a reduced toxicity, pharmacologically acceptable salts thereof, and a process for producing the same; wherein ring A represents an optionally substituted mono- or bicyclic aromatic group; ring B represents an optionally substituted 6-membered unsaturated hydrocarbon ring or 6-membered unsaturated heterocyclic group containing one nitrogen atom; ring C represents an optionally substituted 5-membered heterocyclic group containing one or two nitrogen atoms; W represents a single bond or -CH=CH-; X represents -NR1- or oxygen; Y represents carbon or nitrogen; Z represents -NR2- or nitrogen; and R?1 and R2¿ represent each independently hydrogen or lower alkyl.</p> |
