You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[N-(5-chloro-2-methoxyphenyl)-N'-[[(2R)-oxolan-2-yl]methyl]carbamimidoyl]-4-(trifluoromethyl)benzamide ?
user
C21H21ClF3N3O3
assistant