You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (8S,14S,20R,21S)-21-hydroxy-14-[(3-hydroxyphenyl)methyl]-20-methyl-17-propan-2-yl-6-oxa-12,15,18,27-tetrazatricyclo[20.2.2.18,12]heptacosa-1(25),22(26),23-triene-7,13,16,19-tetrone into molecular formula.
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C33H44N4O7
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