You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2,6-dimethylhept-3-yne;1,3-di(propan-2-yloxy)cyclobutane;2-methylpropylbenzene;2,2,5-trimethylhex-3-yne ?
user
C38H66O2
assistant