You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1R,2R,3S,5S,6S,8S,9S,17S)-3-(1-hydroxypropan-2-yl)-9-methyl-2-methylsulfanyloxy-4,7,14,19-tetraoxaheptacyclo[16.1.1.01,8.03,5.06,8.09,17.012,16]icos-12(16)-en-13-one into its molecular formula.
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C21H26O7S
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