You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-[[(4R)-5-cyclopentyl-4-ethyl-4H-[1,2,4]triazolo[4,3-f]pteridin-7-yl]amino]-3-methoxy-N-methylbenzamide .
user
C23H28N8O2
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