Using NCc1ccccn1, COc1ccc(C(=O)Cc2c(Cl)cncc2Cl)c2c(CC(=O)O)coc12 to produce COc1ccc(C(=O)Cc2c(Cl)cncc2Cl)c2c(CC(=O)NCc3ccccn3)coc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.