Using CCN=C=NCCCN(C)C, CC(C)(C)OC(=O)Nc1ccc(C(=O)O)c(O)c1 to produce CCOC(=O)c1ccc(NC(=O)OC(C)(C)C)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.