for the following products
2-Thioxo-3-ethyl-4-oxo-5-(2-(N-methyl-1,3-thiazolin-2-yliden)-eth-1-yliden)-1,2-oxazolidine | 3-Ethyl-5-[2-(3-methyl-2-thiazolidin-ylidene)ethylidene]-2-thioxo-4-oxazolidinone and 3-Ethyl-5-[2-(3-methyl-2-thiazolidinylidene)ethylidene]-2-thioxo-4-oxazolidone