Using [NH4+], O=C(CCc1ccccc1)CN1C(=O)c2ccccc2Nc2ncccc21 to produce c1ccc(CCc2cn3c(n2)-c2ccccc2Nc2ncccc2-3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.