Using COc1ccc(CN2C(=O)c3cccc(OCCCN4CCOCC4)c3C2=O)c(OC)c1 to produce COc1ccc(CN2Cc3cccc(OCCCN4CCOCC4)c3C2)c(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.