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 1-(azetidin-1-yl)-2-[3-[[4-[8-chloro-7-[(2-methyl-3H-benzimidazol-5-yl)oxy]quinoxalin-2-yl]pyrazol-1-yl]methyl]azetidin-1-yl]ethanone is given. What is its corresponding molecular formula?
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C28H27ClN8O2
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