Using O=S(Cl)Cl, CN1CC(CCCl)Oc2ncc(-c3ccccc3)cc2C1=O to produce CN1CC(CCCl)Oc2ncc(-c3ccccc3)cc2C1=S, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.