You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[4-[[(Z)-4-amino-2-ethylimino-5-methylhex-3-enoyl]amino]-2-[(3S)-3-(hydroxymethyl)-3,4-dihydro-1H-isoquinoline-2-carbonyl]phenyl]-N,N-dibutyl-5-methylpyrazole-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C39H53N7O4
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