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system
Name the molecular formula for the molecule established as (17S)-17-benzyl-22-chloro-11-[(2S)-piperidine-2-carbonyl]-2-oxa-6,7,8,11,15,18-hexazatricyclo[18.2.2.16,9]pentacosa-1(22),7,9(25),20,23-pentaene-16,19-dione using the IUPAC nomenclature.
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C31H38ClN7O4
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