You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [4,5-dihydroxy-2-[(E)-3-hydroxy-2-[[(11Z,14Z,17Z,20Z,23Z)-2-hydroxyhexacosa-11,14,17,20,23-pentaenoyl]amino]hexadec-4-enoxy]-6-(hydroxymethyl)oxan-3-yl] icosanoate into molecular formula.
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C68H121NO10
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