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system
Name the molecular formula for the molecule established as [(2R)-2-[(2-amino-2-methylpropanoyl)amino]-3-oxo-3-[6-oxo-8a-(pyridin-2-ylmethyl)-3,4,7,8-tetrahydro-1H-pyrrolo[1,2-a]pyrazin-2-yl]propyl] benzoate using the IUPAC nomenclature.
user
C27H33N5O5
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