5-[(3-benzylbenzoxazol-2(3H)-ylidene)ethylidene]-4-oxo-2-thioxothiazolidin-3-acetic acid

4-Oxo-5-[2-[3-phenylmethylbenzoxazol-2(3H)-ylidene]ethylidene]-2-thioxo-3-thiazolidineacetic acid