You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (1S,9Z,11S,14S,15R,16S)-4,6-dihydroxy-5-methoxy-9,13,14-trimethyl-16-(2-methylpropyl)-17-azatricyclo[9.7.0.01,15]octadeca-9,12-diene-2,18-dione ?
user
C25H39NO5
assistant