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 3-benzyl-6-(4-ethylphenyl)-5-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,6-dihydropyrimidine-2-thione .
user
C28H25FN4OS
assistant