You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3R,3'S,4'S,5'R)-5'-[2-[(2S)-2-(hydroxymethyl)pyrrolidin-1-yl]-2-oxoethyl]-4'-(2-hydroxypropan-2-yl)-3'-methyl-1-phenylspiro[indole-3,2'-oxolane]-2-one into its molecular formula.
user
C28H34N2O5
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