You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule N-[3-(6-chloroimidazo[1,5-a]pyridin-8-yl)-3-hydroxy-6-bicyclo[3.1.0]hexanyl]-5-cyanopyridine-3-carboxamide ?
user
C20H16ClN5O2
assistant