Using [NH4+], CCOC(=O)c1nccn1C1Cc2cc(CN3C(=O)c4ccccc4C3=O)ccc2C1=O to produce O=C1c2ccccc2C(=O)N1Cc1ccc2c(c1)Cc1c-2[nH]c(=O)c2nccn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.