You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-amino-1-[(11S,12R,13R)-11,12,13-trihydroxy-9-(3-methylbutanoyl)-1-oxa-6,9-diazacyclotetradec-6-yl]hexan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H43N3O6
assistant