preferred_name: 1-ethyl-2-(3-(1-ethylquinolin-2(1H)-ylidene)prop-1-enyl)-6-((6-oxo-6-((2-(2-(2-(4-(2-oxo-2-(6-oxo-5,6-dihydro-11H-pyrido(2,3-b)(1,4)benzodiazepin-11-yl)ethyl)piperazin-1-yl)ethoxy)ethoxy)ethyl)amino)hexanoyl)amino)quinolinium iodide