You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(3R,3aR,6R,6aR)-6-[(2S)-3-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoyl]oxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-3-yl] (5S)-5,6-dinitrooxyhexanoate by IUPAC nomenclature, provide its molecular formula.
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C22H35N3O14
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