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What is the molecular formula of the compound with this IUPAC name [(2R)-2-[[(4aR,6R,7R,7aR)-6-(2-amino-6-ethoxypurin-9-yl)-7-chloro-7-methyl-2-oxo-4,4a,6,7a-tetrahydrofuro[3,2-d][1,3,2]dioxaphosphinin-2-yl]amino]-3-methylbutyl] 2-methylpropanoate ?
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C22H34ClN6O7P
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