You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-[2-[3-(2-morpholin-4-ylpiperidin-4-yl)-1,2,4-oxadiazolidin-5-yl]pyrrolidin-1-yl]piperidin-1-yl]ethanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H40N6O3
assistant