You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1R,4S)-5-[(2-methylpropan-2-yl)oxycarbonyl]-2-oxa-5-azabicyclo[2.2.1]heptane-1-carboxylic acid .
user
C11H17NO5
assistant