Using O=C(NC1C2CC3CC(C2)CC1C3)c1ccc(Cl)nc1Cl, CCCS to produce CCCSc1nc(Cl)ccc1C(=O)NC1C2CC3CC(C2)CC1C3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.