You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R,3R,4S,5R)-2-(6-aminopurin-9-yl)-5-[[[(2R,3R,4R,5R)-2-(6-aminopurin-9-yl)-5-[[[(2R,3R,5S)-2-(6-aminopurin-9-yl)-5-(hydroxymethyl)oxolan-3-yl]oxy-sulfanylphosphoryl]oxymethyl]-4-hydroxyoxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]oxolane-3,4-diol into its molecular formula.
user
C30H37N15O13P2S2
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