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Convert the IUPAC name of a molecule tert-butyl 2-[[1-(5-amino-1,2,4-thiadiazol-3-yl)-2-[[(6S)-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl]amino]-2-oxoethylidene]amino]oxyacetate into molecular formula.
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C18H22N6O5S2
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