A process for the preparation of new benzoselemino (4,3,2-cd) indazoles.

摘要

A benzoselenino[4, 3, 2-cd] indazole compound having in free base form the following general formula CHEM amd the pharmaceutically acceptable salts thereof, wherein: R7, R8, R9 and R10 independently represent hydrogen, hydroxy or alkoxy of from one to four carbon atoms; R2 is ANR min R sec in which A is a straight or branched alkylene chain of from two to five carbon atoms, optionally substituted with hydroxyl and in which R min and R sec are independently a hydrogen, a straight or branched alkyl of from one to four carbon atoms, optionally substituted with hydroxyl or R min and R sec when taken together, represent the bifunctional radical CHEM in which n and m are each, independently, the integer 2 or 3 and B is a direct bond or O, S or NR''' wherein R''' is hydrogen or straight or branched alkyl of from one to four carbon atoms, optionally substituted with hydroxyl; and R5 is nitro, NH2, NHR2 or NHR''' min wherein R''' min is a one to four carbon atom acyl radical, a chloroacetyl radical, -@-Z-NRxRy wherein Z is a straight or branched alkylene chain of from one to four carbon atoms and wherein Rx and Ry are each hydrogen, or a straight or branched alkyl of from one to four carbon atoms optionally substituted with hydroxy, R''' min is the group CHEM Also disclosed are methods for their production and pharmaceutical compositions comprising the compounds. Compounds of the invention have pharmacological properties and are useful antibacterial agents, antifungal agents, and antitumor agents.