Using CCN1CCN(c2nc(C#N)c(C(=O)OC)c(Nc3cccc(C)c3)n2)CC1 to produce CCN1CCN(c2nc3c(c(Nc4cccc(C)c4)n2)C(=O)NC3)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.