You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4S)-7'-(5-chloro-2-fluorophenyl)-3'-(3,6-dihydro-2H-pyran-4-yl)spiro[5H-1,3-oxazole-4,5'-chromeno[2,3-b]pyridine]-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H19ClFN3O3
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