You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (2R,3R)-2-(1-ethylimidazol-2-yl)-N-methyl-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-ylmethyl)oxolane-3-carboxamide is given. What is its corresponding molecular formula?
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C19H26N4O2S
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