You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3aS,6aR)-2-(2-oxo-1-propan-2-ylpyrrolidin-3-yl)-1,3,4,5,6,6a-hexahydrocyclopenta[c]pyrrole-3a-carboxylic acid;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H25ClN2O3
assistant