Using CCCC(C=C(C#N)c1nnn(C(c2ccccc2)(c2ccccc2)c2ccccc2)n1)CCC to produce CCCC(CCC)CC(CN)c1nnn[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.