You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,2R,3R,4S)-3-[(2S)-2-methyl-2,3-dihydroindole-1-carbonyl]-7-oxabicyclo[2.2.1]hept-5-ene-2-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H17NO4
assistant