You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[(1R,3R,4aS,9aR)-3-[2-(dimethylamino)-2-oxoethyl]-1-(hydroxymethyl)-3,4,4a,9a-tetrahydro-1H-pyrano[3,4-b][1]benzofuran-6-yl]oxane-4-carboxamide .
user
C22H30N2O6
assistant