You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-(2-methoxyethoxy)propanoyl]-3,3a,4,5,6,6a-hexahydro-1H-cyclopenta[c]pyrrole-3-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H23NO5
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