Using COc1cnc(NC(=O)NS(=O)(=O)c2cn(C)c3c(OCCOC(C)=O)cccc23)s1 to produce COc1cnc(NC(=O)NS(=O)(=O)c2cn(C)c3c(OCCO)cccc23)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.