You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-oxo-3,3a,4,5,6,7,8,8b-octahydroindeno[1,2-b]pyrrole-1-carboxylic acid using the IUPAC nomenclature.
user
C12H15NO3
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