Using O=S(=O)(CCCCl)NCc1ccc2nc(N3CCN(C4CC4)CC3)sc2c1 to produce O=S1(=O)CCCN1Cc1ccc2nc(N3CCN(C4CC4)CC3)sc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.