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 2-[[(7S)-7-methyl-4-oxo-3-phenyl-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-2-yl]sulfanyl]-N-(3-phenyl-1,2,4-thiadiazol-5-yl)acetamide .
user
C27H23N5O2S3
assistant