Using CCN=C=NCCCN(C)C, CC(C)(CC(=O)O)NC(=O)OCc1ccccc1 to produce CN(C)C(=O)CC(C)(C)NC(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.