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What is the molecular formula of the molecule ethyl (5R)-2-[1-(2-amino-2-oxoethyl)-2-oxoindol-3-ylidene]-7-methyl-3-oxo-5-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate ?
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C26H22N4O5S
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