Using CC(C)(C)OC(=O)C[Zn+], Nc1ccc2[nH]ncc2c1 to produce CCOC(=O)C(CC(=O)OC(C)(C)C)Nc1ccc2[nH]ncc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.