3-Ethyl-2-(1,3-dimethyl-5-oxo-2-thioxoimidazolidin-4-ylidene)-5-[1-methylpyridin-2(1H)-ylidene]-4-thiazolidinone

2-(1,3-dimethyl-5-oxo-2-thioxoimidazolidin-4-ylidene)-3-ethyl-5-(1-methyl-(1H)-pyridin-2-ylidene)thiazolidin-4-one