Using CCN=C=NCCCN(C)C, COc1ccc2c(c1)NC(=O)C(C(=O)O)C2 to produce COc1ccc2c(c1)NC(=O)C(C(=O)N(C)C)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.