You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named propan-2-yl N-[4-[[(2R,3S)-3-[[(3aS,4R,6aR)-2,3,3a,4,5,6a-hexahydrofuro[2,3-b]furan-4-yl]oxycarbonylamino]-2-hydroxy-4-phenylbutyl]-(1,3-benzodioxol-5-ylsulfonyl)amino]-3,3-dimethylbutyl]carbamate by IUPAC nomenclature, provide its molecular formula.
user
C34H47N3O11S
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