You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
11-chloro-8-[(R)-(5-chloropyridin-2-yl)-(oxan-4-yl)methyl]-5-(3,5-dimethyltriazol-4-yl)-3,8,12-triazatricyclo[7.4.0.02,7]trideca-1(13),2(7),3,5,9,11-hexaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H23Cl2N7O
assistant