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What is the molecular formula of the compound with this IUPAC name (1S,4R,5S,9R,10R,13R,15R,20R,21R)-21-[(2S)-4-(dimethylamino)-6-ethenyl-3-hydroxyoxan-2-yl]oxy-4-ethyl-1,5,10,13,15,20-hexamethyl-3,6,16-trioxa-11-azatricyclo[13.3.3.05,9]henicosane-2,7,19-trione ?
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C34H56N2O9
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