Using CC(C)(C)OC(=O)N1CCC(CN)CC1, Clc1nncc2onc(-c3ccccc3)c12 to produce CC(C)(C)OC(=O)N1CCC(CNc2nncc3onc(-c4ccccc4)c23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.