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 4-[6-chloro-4-(6,6-difluoro-4-methyl-1,4-diazepan-1-yl)-8-fluoro-2-[[(2S)-1-methylpyrrolidin-2-yl]methoxy]quinazolin-7-yl]-1,3-benzothiazol-2-amine .
user
C27H29ClF3N7OS
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