You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4S,5S)-5-[(3R)-3-[(2S,3S,6R,8S,9R)-3,9-dimethyl-8-[(3S)-3-methylpent-4-enyl]-1,7-dioxaspiro[5.5]undecan-2-yl]butyl]-2,2,4-trimethyl-3-methylideneoxasilolane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H50O3Si
assistant