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 6-[(3E,5Z)-7-(2-hydroxy-2-oxo-1,3,2lambda5-dioxaphosphinan-5-yl)octa-3,5-dien-4-yl]-7,7-dimethylpyrimido[4,5-b][1,4]oxazin-4-amine into molecular formula.
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C19H27N4O5P
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