You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 3-tert-butyl-4-[tert-butyl(dimethyl)silyl]oxy-6-(5-oxo-4H-1,2,4-oxadiazol-3-yl)spiro[3,4-dihydrochromene-2,4'-piperidine]-1'-carboxylic acid ?
user
C26H39N3O6Si
assistant