Using COC(=O)CCNC(=O)c1ccc2c(c1)nc(-c1ccc(C#N)cc1)n2CCCN to produce COC(=O)CCNC(=O)c1ccc2c(c1)nc(-c1ccc(CN)cc1)n2CCCN, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.