You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,6-dichloro-9-[(1R,4S)-4-(4-ethyltriazol-2-yl)cyclopent-2-en-1-yl]purine is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H13Cl2N7
assistant