Using Cc1cc2n(c1)-c1ccccc1OC21CCN(C(=O)OC(C)(C)C)CC1 to produce Cc1cc2n(c1)-c1ccccc1OC21CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.