You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5R)-4-(5-ethoxy-3,3-dipropyl-2H-indol-1-yl)-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H33N3O
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