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 (12R)-12-ethyl-5-ethylsulfanyl-N-(2-methoxyethyl)-12-methyl-11-oxa-8-thia-4,6-diazatricyclo[7.4.0.02,7]trideca-1(9),2,4,6-tetraen-3-amine is given. What is its corresponding molecular formula?
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C17H25N3O2S2
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