Using O=C(CCl)CCl, COc1ccc(C(=O)c2c(N)sc3c2CCN(Cc2ccccc2)C3)cc1OC to produce COc1ccc(-c2c(Cl)c(CCl)nc3sc4c(c23)CCN(Cc2ccccc2)C4)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.