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)-3-amino-4-[[(2R)-1-methoxy-3-(3-methylcyclohexyl)sulfanyl-1-oxopropan-2-yl]amino]-4-oxobutanoic acid into molecular formula.
user
C15H26N2O5S
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