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 [2-[[(2R,3S,4R,5R)-5-[2-chloro-6-(cyclopentylamino)purin-9-yl]-3,4-dihydroxyoxolan-2-yl]methyl-methylamino]-2-oxoethyl]-(methoxycarbonyloxymethoxy)phosphinic acid is given. What is its corresponding molecular formula?
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C21H30ClN6O10P
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