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 1-[(1R)-1-(2,6-dichloro-3-fluorophenyl)ethyl]-6-(1-methylpyrazol-4-yl)pyrrolo[3,2-b]pyridine .
user
C19H15Cl2FN4
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