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 1-tert-butyl-4-methylbenzene;8-cyclopropyl-3-methyl-8-(2-methylpropylsulfonylmethyl)spiro[4.5]decan-4-one .
user
C30H48O3S
assistant