You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named methyl 2-[4-(1,2,3,3a,4,5,6,6a-octahydrocyclopenta[c]pyrrole-3-carbonyl)piperazin-1-yl]acetate is given. What is its corresponding molecular formula?
user
C15H25N3O3
assistant