You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [(2S,3R,4S,5R,6R)-5-[(3R)-3-[(E)-but-2-enoyl]oxybutanoyl]oxy-3-[(2S,3S,4R,5S,6R)-3,4-dihydroxy-5-[(2S,3R,4R,5R)-3-hydroxy-5-(hydroxymethyl)-4-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxolan-2-yl]oxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl] (4aR,5R,6aR,6aS,6bR,8aR,9R,10R,11S,12aR,14bS)-5,11-dihydroxy-9-(hydroxymethyl)-2,2,6a,6b,9,12a-hexamethyl-10-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylate into molecular formula.
user
C67H106O30
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