Using CCOC(=O)[C@@H](O)CCc1c(O)nc(NC2CCOCC2)nc1O to produce CCOC(=O)[C@H]1CCc2c(O)nc(NC3CCOCC3)nc2O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.