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 methyl 3,5-dihydroxy-4-methoxy-13-oxo-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2,4,6-triene-17-carboxylate .
user
C19H23NO6
assistant