You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-acetamido-4-hydroxy-6-(1,2,3-trihydroxypropyl)-2-[(3E,5E)-3,6,7-trimethylocta-3,5-dien-1-yn-4-yl]oxyoxane-2-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H33NO9
assistant