You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6'-(prop-1-en-2-yloxymethyl)spiro[1,3-dioxane-5,2'-bicyclo[2.2.1]heptane]-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H20O4
assistant