You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,4R)-1-[2-[5-[2-[[(3R,3aR,6R,6aR)-3-methoxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl]oxy]pyrimidin-5-yl]-3-acetylindol-1-yl]acetyl]-N-(6-bromopyridin-2-yl)-4-fluoropyrrolidine-2-carboxamide;(2S,4R)-1-[2-[5-[2-[[(3R,3aR,6R,6aR)-3-methoxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl]oxy]pyrimidin-5-yl]-3-acetylindol-1-yl]acetyl]-N-[3-(2-chlorophenyl)-2-fluorophenyl]-4-fluoropyrrolidine-2-carboxamide;bis(sulfanylidene-lambda4-sulfanylidene)-lambda4-sulfane;(2S,4R)-N-(6-bromopyridin-2-yl)-4-fluoropyrrolidine-2-carboxamide;methane;sulfanylidene-[[[[(sulfanylidene-lambda4-sulfanylidene)-lambda4-sulfanylidene]-lambda4-sulfanylidene]-lambda4-sulfanylidene]-lambda4-sulfanylidene]-lambda4-sulfane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C85H87Br2ClF4N14O15S13
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