Using CC(C)(C)OC(=O)C1CNCCN1c1ncccc1N, CC(C)=O to produce CC(C)Nc1cccnc1N1CCNCC1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.