Using CCN=C=NCCCN(C)C, Cc1cc(C)c2c(c1C)OC(C)(CC(=O)O)C2 to produce Cc1cc(C)c2c(c1C)OC(C)(CC(=O)N(C)C)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.