You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(1S,2R,3R,4S,6S,8R,9R,13S,16S,17R,18S)-11-ethyl-8,9,16-trihydroxy-6,18-dimethoxy-13-(methoxymethyl)-11-azahexacyclo[7.7.2.12,5.01,10.03,8.013,17]nonadecan-4-yl] acetate into its molecular formula.
user
C26H41NO8
assistant