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 (17Z)-1,11-dihydroxy-17-hydroxyimino-10,18-dimethoxy-2,14,16-trimethyl-5-phenyl-4,19-dioxabicyclo[13.3.1]nonadecan-3-one .
user
C28H43NO8
assistant