Using Cc1cccc(N2CCC(CCCC3CCN(C(=O)OC(C)(C)C)CC3)CC2)n1 to produce Cc1cccc(N2CCC(CCCC3CCNCC3)CC2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.