Using Clc1cc(OCc2ccccc2)c2cc(-c3cn4nc(Br)sc4n3)oc2c1, CO to produce COc1nn2cc(-c3cc4c(OCc5ccccc5)cc(Cl)cc4o3)nc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.