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 3,7-dimethyloct-6-en-1-yn-3-ol;3,7-dimethyloct-6-en-1-yn-3-yl acetate;2-methylbut-3-yn-2-ol;3,7,11,15-tetramethylhexadec-1-yn-3-ol .
user
C47H80O5
assistant