Using COP(=O)(CC(=O)/C=C/C1CCN(C(=O)OC(C)(C)C)CC1)OC to produce COP(=O)(CC(=O)CCC1CCN(C(=O)OC(C)(C)C)CC1)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.