You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-[2-[2-(dimethylamino)ethoxy]-5-(4-ethylpiperazin-1-yl)sulfonylpyridin-3-yl]-3-propyl-2-(pyridin-2-ylmethyl)-6H-pyrazolo[4,3-d]pyrimidin-7-one into molecular formula.
user
C29H39N9O4S
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