Using CNc1nc(C)c(-c2ccnc(Nc3ccc(N4CCN(C(C)=O)CC4)cc3)n2)s1 to produce CNc1nc(C)c(-c2ccnc(Nc3ccc(N4CCNCC4)cc3)n2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.