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For the molecule named N-[(4R,7R,8R)-8-methoxy-4,7,10-trimethyl-11-oxo-5-(pyrazine-2-carbonyl)-2-oxa-5,10-diazabicyclo[10.4.0]hexadeca-1(12),13,15-trien-14-yl]propanamide by IUPAC nomenclature, provide its molecular formula.
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