You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (6R,7S)-6-(4-ethoxyphenyl)-N-(3-methoxyphenyl)-3-phenyl-6,7-dihydro-5H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine-7-carboxamide into molecular formula.
user
C26H25N5O3S
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