You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-[[9-[(6R,7aS)-7-hydroxy-2-oxido-2-oxo-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-6-yl]-2-amino-6-oxo-1H-purin-8-yl]sulfanyl]-N-benzylpentanamide;hydron into molecular formula.
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C22H27N6O8PS
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