You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[(2S)-7-fluoro-2-methyl-10-methylimino-6-(4-methylpiperazin-1-yl)-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraen-11-yl]ethanone .
user
C20H25FN4O2
assistant