Using CCOC(=O)Cn1c(=O)c2cc(Cc3ncc[nH]3)ccc2n(Cc2ccc(Cl)c(Cl)c2)c1=O to produce O=C(O)Cn1c(=O)c2cc(Cc3ncc[nH]3)ccc2n(Cc2ccc(Cl)c(Cl)c2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.