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-[3-[[methyl(propan-2-yl)amino]methyl]-5,6,8,9-tetrahydroimidazo[1,2-d][1,4]diazepin-7-yl]-2-thiophen-3-ylethanone;2,2,2-trifluoroacetic acid is given. What is its corresponding molecular formula?
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C20H27F3N4O3S
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