Using CCOC(=O)CP(=O)(OCC)OCC, CCCCOc1c(CNC(=O)OC(C)(C)C)n(CC(C)(C)C)c(=O)c2ccc(C=O)cc12 to produce CCCCOc1c(CNC(=O)OC(C)(C)C)n(CC(C)(C)C)c(=O)c2ccc(/C=C/C(=O)OCC)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.