You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[2-[(3S)-3-[(1S)-1-aminoethyl]piperidin-1-yl]-2-oxoethyl]piperidin-2-one by IUPAC nomenclature, provide its molecular formula.
user
C14H25N3O2
assistant