You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-[(2-amino-2-oxoethyl)amino]-2-oxoethyl] (2R)-1-(adamantane-1-carbonyl)pyrrolidine-2-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C20H29N3O5
assistant