You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (3S)-4-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-3-[[(2S)-2-[[(2S)-3-(1H-indol-3-yl)-2-[[(2S)-2-(tritylamino)propanoyl]amino]propanoyl]amino]-4-methylsulfanylbutanoyl]amino]-4-oxobutanoic acid into molecular formula.
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C51H55N7O7S
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