Using COc1ccc2[nH]nc(C(=O)NCC3CCN(C(=O)OC(C)(C)C)CC3)c2c1 to produce COc1ccc2[nH]nc(C(=O)NCC3CCNCC3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.