You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name methyl (3R,8E)-7-amino-6-(benzenesulfonyl)-3-(3-methoxyphenyl)-8-[(3-methoxyphenyl)methylidene]-4-oxopyrrolo[2,1-c][1,4]thiazine-1-carboxylate into its molecular formula.
user
C30H26N2O7S2
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