Using CCOP(=O)(OCC)c1ccc(CC(NC(=O)OC(C)(C)C)C(=O)OC)cc1P(=O)(OCC)OCC to produce CCOP(=O)(OCC)c1ccc(CC(NC(=O)OC(C)(C)C)C(=O)O)cc1P(=O)(OCC)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.