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 4-[3-[(2S)-1-but-2-ynoylpiperidin-2-yl]-8-(methylideneamino)imidazo[1,5-a]pyrazin-1-yl]-N-(1,2-oxazol-3-yl)benzamide is given. What is its corresponding molecular formula?
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C26H23N7O3
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