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)-N-[[(2R)-oxolan-2-yl]methyl]-2-[(4-oxo-3H-quinazolin-2-yl)sulfanyl]propanamide is given. What is its corresponding molecular formula?
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C16H19N3O3S
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