NC(C(=O)Nc1cncc2ccccc12)c1ccc(Cl)c(Cl)c1
CN(C)C(C(=O)Nc1cncc2ccccc12)c1ccc(Cl)c(Cl)c1
CC(=O)NC(C(=O)Nc1cncc2ccccc12)c1ccc(Cl)c(Cl)c1
O=C(Nc1cncc2ccccc12)C(NCC1CC1)c1ccc(Cl)c(Cl)c1
O=C1NC(c2ccc(Cl)c(Cl)c2)C(=O)N1c1cncc2ccccc12
Simple analogs to the N intermediate of open-chain dichloro form