Using COC(=O)c1cc(Cl)c(C(=O)n2ccc3c(NC(=O)C4CC4)nccc32)c(Cl)c1, C1CCOC1 to produce O=C(O)c1cc(Cl)c(C(=O)n2ccc3c(C(=O)C4CC4)nccc32)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.