You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[3,3-bis(hydroxymethyl)piperidin-1-yl]-2-[(2,2-dimethyl-3H-1-benzofuran-7-yl)oxy]ethanone into its molecular formula.
user
C19H27NO5
assistant