Using COC(=O)CP(=O)(OC)OC, CC(C)(C)OC(=O)N1CCC(=O)CC1 to produce COC(=O)CC1CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.