Using O=C(Nc1[nH]n(-c2c(Cl)cc(Cl)cc2Cl)c(=O)c1-n1cccn1)c1ccccc1 to produce Nc1[nH]n(-c2c(Cl)cc(Cl)cc2Cl)c(=O)c1-n1cccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.