You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (4S)-20-(3,4-dimethoxyphenyl)-22-hydroxy-4-methyl-3,17-dioxatricyclo[12.8.0.016,21]docosa-1(22),12,14,16(21)-tetraene-2,8,18-trione into molecular formula.
user
C29H32O8
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