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 1-[4-[6-chloro-2-cyclohexyloxy-8-fluoro-7-(2-fluoro-6-hydroxyphenyl)quinazolin-4-yl]piperazin-1-yl]prop-2-en-1-one ?
user
C27H27ClF2N4O3
assistant