Using O=C([O-])[O-], O=S1(=O)NC(N2CCNCC2)=Nc2ccc(Cl)cc21 to produce CN1CCN(C2=Nc3ccc(Cl)cc3S(=O)(=O)N2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.