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 (6R,7R)-7-[[(2E)-2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[[1-[2-(methylcarbamoyloxy)ethyl]pyrrolo[3,2-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid is given. What is its corresponding molecular formula?
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C27H28ClN8O9S2+
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