You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3S,6S,9R)-6-benzyl-3-methyl-4,7-dioxo-17-(pyridin-2-ylmethylamino)-2,5,8,14,16,18,19-heptazabicyclo[13.3.1]nonadeca-1(18),15(19),16-triene-9-carboxamide into its molecular formula.
user
C27H34N10O3
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