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What is the molecular formula of the compound with this IUPAC name (E)-3-amino-2-[N'-[(1R)-1-[(3R)-4-cyano-4-methyl-1,1-dioxothiolan-3-yl]ethyl]-N-(4-fluorophenyl)carbamimidoyl]prop-2-enamide ?
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C18H22FN5O3S
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