You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule ethyl 4-[2-[[(2S)-3,4-dioxo-1-phenyl-4-propan-2-yloxybutan-2-yl]amino]-2-oxoethyl]-3-oxo-5-phenyl-2-propan-2-yl-2H-pyrazine-1-carboxylate into SMILES representation.
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