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 N-[(2R,3R,4R,5S,6R)-2-cyclohexyloxy-4,5-dimethoxy-6-(methoxymethyl)oxan-3-yl]-N-methylacetamide ?
user
C18H33NO6
assistant