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 9-[(6R,15R)-8-(5,6-dichlorobenzimidazol-1-yl)-3,9,12,18-tetrahydroxy-3,12-dioxo-2,4,7,11,13,16-hexaoxa-3lambda5,12lambda5-diphosphatricyclo[13.2.1.06,10]octadecan-17-yl]-1H-purin-6-one into molecular formula.
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C22H22Cl2N6O13P2
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