5-[(1-ethylpyrrolidin-2-ylidene)ethylidene]dihydro-1,3-dimethyl-2-thioxo-1H,5H-pyrimidine-4,6-dione

5-[2-(1-Ethylpyrrolidin-2-ylidene)ethylidene]-2,3-dihydro-1,3-dimethyl-2-thioxo-4,6(1H,5H)-pyrimidinedione