Using CCC(=O)C1=C(O)CC(c2ccc3c(c2)N(CC#N)C(=O)CO3)CC1=O, CCON to produce CCON=C(CC)C1=C(O)CC(c2ccc3c(c2)N(CC#N)C(=O)CO3)CC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.