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-[2-(benzylamino)-5-[[4-[3-(methylamino)propylamino]-6-oxo-5,7-dihydropyrrolo[2,3-d]pyrimidin-5-yl]methylideneamino]phenoxy]butanoic acid .
user
C28H33N7O4
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