Using Cc1c(-c2ccc(C#N)cc2)nnc(N2CCC(N(C)C(=O)OC(C)(C)C)CC2)c1C to produce CNC1CCN(c2nnc(-c3ccc(C#N)cc3)c(C)c2C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.