You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[3-butan-2-yloxy-1-[(4-chlorophenyl)methyl]-5-propan-2-ylindol-2-yl]-2,2-dimethylpropanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H34ClNO3
assistant