Using O=C1c2ccc(C(O)(c3ccc(Cl)cc3)c3ccc(Cl)cc3)cc2C(=O)N1Cc1cccnc1 to produce O=C1c2ccc(C(c3ccc(Cl)cc3)c3ccc(Cl)cc3)cc2C(=O)N1Cc1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.