You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[9-[6-(chloromethyl)-4-tritylmorpholin-2-yl]purin-6-yl]cyclohexa-1,3-diene-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H33ClN6O2
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