You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (3R,4S)-1-iminophosphanyl-3-phosphorosooxy-4-[tri(propan-2-yl)silyloxymethyl]azetidin-2-one into molecular formula.
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C13H26N2O4P2Si
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