You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (1S,2S,3S,4S,5R,6S,8S,9S,10R,13S,16S,17R)-11-ethyl-3,8,13-trihydroxy-4,6,16-trimethoxy-11-azahexacyclo[7.7.2.12,5.01,10.03,8.013,17]nonadecan-12-one is given. What is its corresponding molecular formula?
user
C23H35NO7
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