You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(furan-2-yl)-5-[4-[2-(2-pyridin-3-yl-1,3-thiazol-4-yl)acetyl]piperazin-1-yl]-1,3-oxazole-4-carbonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H18N6O3S
assistant