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-[[cyclopropyl-(2-hydroxy-3-methylbutyl)amino]methyl]-5-(2-fluorophenyl)-3H-thieno[2,3-d]pyrimidin-4-one .
user
C21H24FN3O2S
assistant