You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-(2-cyclopropylethyl)-N-[(2S)-2,5-diaminopentyl]-6-(4-fluorophenyl)-1H-indole-2-carboxamide;dihydrochloride into molecular formula.
user
C25H33Cl2FN4O
assistant