Using [NH4+], CCOC(=O)c1nccn1CC(=O)c1ccc(Cl)cc1Cl to produce O=c1[nH]c(-c2ccc(Cl)cc2Cl)cn2ccnc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.