O=C(NC/C=C/Cl)Nc1cccnc1
O=C(Nc1cccnc1)Nc1ccsc1Cl
O=C(NCc1cscc1Cl)Nc1cccnc1
O=C(Nc1cccnc1)Nc1ccncc1Cl
O=C(NCc1sccc1Cl)Nc1cccnc1
O=C(NCc1ncccc1Cl)Nc1cccnc1
O=C(Nc1cccnc1)Nc1csc(Cl)c1
O=C(NCCc1ccccc1Cl)Nc1cccnc1
O=C(NCc1cc(Cl)cs1)Nc1cccnc1
from pyridine_urea.smi, https://discuss.postera.ai/uploads/short-url/hxvdTApPgoslOKWLhafapNmSdMv.smi