Using Cn1nnc2c(C(=O)Cl)ncn2c1=O, NCC(=O)c1ccccc1 to produce Cn1nnc2c(C(=O)NCC(=O)c3ccccc3)ncn2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.