You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-[7-(8-chloronaphthalen-1-yl)-2-[2-[3-[(2,4-dihydroxy-5-propan-2-ylphenyl)methyl]-3,9-diazaspiro[5.5]undecan-9-yl]ethoxy]-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-4-yl]piperazin-1-yl]prop-2-en-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C45H56ClN7O4
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