Using CS(=O)(=O)c1ncc(Cl)c(C(=O)O)n1, O=C(Nc1nc2ccccc2s1)c1cccc2c1CNCC2 to produce O=C(Nc1nc2ccccc2s1)c1cccc2c1CN(c1ncc(Cl)c(C(=O)O)n1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.