Using CCCC1CC(=O)N(CCl)C1, Clc1cn2cc(Cl)sc2n1 to produce CCCC1CC(=O)N(Cc2c(Cl)nc3sc(Cl)cn23)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.