Using CC(C)(C)OC(=O)N1C=C(c2ccc3c(N)ncnn23)CCC1 to produce CC(C)(C)OC(=O)N1CCCC(c2ccc3c(N)ncnn23)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.