Using CS(=O)(=O)c1ccc2c(ccn2-c2ccc(OC3CCN(C(=O)CCl)CC3)cn2)c1, C1CCNC1 to produce CS(=O)(=O)c1ccc2c(ccn2-c2ccc(OC3CCN(C(=O)CN4CCCC4)CC3)cn2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.