You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl (2R)-1-[3-(7,7-dimethyl-1H-pyrano[2,3-g]indol-3-yl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyl]-2-prop-2-enylpyrrolidine-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H39N3O6
assistant