You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3R,3'R,4'S,5'R)-4'-[hydroxy(dimethyl)silyl]-5'-[2-[4-(2-hydroxyethyl)triazol-1-yl]ethyl]-1,3'-dimethyl-5-(3-oxo-1H-indazol-2-yl)spiro[indole-3,2'-oxolane]-2-one by IUPAC nomenclature, provide its molecular formula.
user
C28H34N6O5Si
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