BISAZO COMPOUNDS, INTERMEDIATES THEREOF, PROCESS FOR SYNTHESIZING THE SAME AND THERAPEUTIC AGENT FOR VIRAL INFECTION CONTAINING THE SAME

摘要

The present invention provides a bisazo compound of formula (A) useful as a therapeutic agent for viral infection such as AIDS, an amidonaphtholsulfonic acid compound useful as an intermediate thereof, a process for synthesizing such a compound and a therapeutic agent for viral infection comprising the bisazo compound. Formula (A): Ar?1-N=N-(Y1¿)-NH-CO-(X1)-CO-NH-(Y1')-N=N-Ar1', wherein Ar?1 and Ar1¿' represent an aryl group having 15 or less carbon atoms or a 5- or 6-membered ring heteroaryl group, (X1) represents a naphthylene or biphenylene group having 20 or less carbon atoms, (Y1) and (Y1') represent a naphthylene group having 15 or less carbon atoms with the proviso that at least 2 sulfo groups or salts thereof are contained in the molecule.