Using CC(C)(C)OC(=O)N1CCC(C2Cc3cc(N4CCN(C(=O)OCc5ccccc5)CC4)ncc3O2)CC1 to produce CC(C)(C)OC(=O)N1CCC(C2Cc3cc(N4CCNCC4)ncc3O2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.