You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-chloro-9,10-dioxa-1,8-diazatricyclo[6.1.1.02,7]deca-2(7),3,5-triene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C6H3ClN2O2
assistant