for the following products
5-[4-[2-(5-Ethylpyridin-2-yl)ethoxy]benzylidene]thiazolidine-2,4-dione | 5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]phenyl]methylene]-2,4-thiazolidinedione and 5-[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]benzylidene]-2,4-thiazolidinedione
