You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (4R)-4-benzyl-3-[(2S)-2-(2-isocyanoethyl)-4-methylidenehexanoyl]-1,3-oxazolidin-2-one;(4R)-4-benzyl-3-(4-methylidenehexanoyl)-1,3-oxazolidin-2-one;prop-2-enenitrile into its molecular formula.
user
C40H48N4O6
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