You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-[(E)-2-(5-butyl-1,3-oxazol-2-yl)ethenyl]-1,3-thiazol-2-yl]-2-(4,5-dicyanoimidazol-1-yl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H17N7O2S
assistant