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 N-(3-aminopropyl)-7-[[5-(3-aminopropylamino)-1-hydroxy-5-oxopentyl]amino]-9-ethyl-2,3-didehydro-9H-fluorene-4-carboxamide .
user
C27H37N5O3
assistant