Using CC(C)(C)OP(=O)(OCCN1CCN(C(=O)OCc2ccccc2)CC1=O)OC(C)(C)C to produce CC(C)(C)OP(=O)(OCCN1CCNCC1=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.