Using CCOC(=O)CC(=O)O, CCc1nc2c(cnn2CC)c(NC2CCOCC2)c1CN to produce CCOC(=O)CC(=O)NCc1c(CC)nc2c(cnn2CC)c1NC1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.