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 sodium;(6R,7R)-7-[[(2E)-2-(2-amino-1,3-thiazol-4-yl)-2-ethoxyiminoacetyl]amino]-3-(imidazo[1,2-a]pyridin-5-ylsulfanylmethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate is given. What is its corresponding molecular formula?
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C22H20N7NaO5S3
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