4-[1''-(pyrimethaminyl)methyl-3''-isatinimino]-N-(5',6'-dimethoxy-4'-pyrimidinyl) benzene sulphonamide 4-[1-(pyrimethaminyl)methyl-3-isatinimino]-N-(5',6'-dimethoxy-4'-pyrimidinyl) benzene sulphonamide AIDS-062152 AIDS062152