Using O=C1c2ccccc2C(=O)N1c1ncc(C(Cl)Cl)nc1CO to produce O=Cc1nc(C(Cl)Cl)cnc1N1C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.