1-[2-(1-{1-[(4,9-Dimethoxy-8-oxo-8H-[1,3]dioxolo[4,5-g]chromen-6-yl)methyl]-2-[(2,5-dimethylphenyl)amino]-2-oxoethyl}hydrazino)-2-oxoethyl]pyridinium chloride AIDS-015997 AIDS015997 NSC646387