You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[[5-(furan-2-yl)-[1,2,4]triazolo[4,3-c]quinazolin-3-yl]sulfanyl]-N-[[(2R)-oxolan-2-yl]methyl]acetamide into its molecular formula.
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C20H19N5O3S
assistant