Using CC(C)(C)OC(=O)N1CC=C(c2cncc(-c3cnc4c(c3)CCCN4C(N)=O)c2C#N)CC1 to produce CC(C)(C)OC(=O)N1CCC(c2cncc(-c3cnc4c(c3)CCCN4C(N)=O)c2C#N)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.