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 (6R,8S)-2-[3-chloro-2-fluoro-6-(tetrazol-1-yl)phenyl]-8-methyl-6-[5-(thiadiazol-5-yl)-1H-imidazol-2-yl]-7,8-dihydro-6H-pyrrolo[1,2-a]pyrimidin-4-one .
user
C20H14ClFN10OS
assistant