You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named dispiro[3.1.36.14]decan-8-ylmethyl 2-[[[(2R)-1-(7-aminoimidazo[4,5-b]pyridin-3-yl)propan-2-yl]oxymethyl-[[1-(dispiro[3.1.36.14]decan-8-ylmethoxy)-2-methyl-1-oxopropan-2-yl]amino]phosphoryl]amino]-2-methylpropanoate by IUPAC nomenclature, provide its molecular formula.
user
C40H61N6O6P
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