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system
Name the molecular formula for the molecule established as tert-butyl N-[1-[[1-(4-ethynylphenyl)-2-(4-methoxyanilino)-2-oxoethyl]-heptylamino]-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]carbamate using the IUPAC nomenclature.
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C38H47N3O6
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