O=C1C[C@H](N2Cc3ccc(Cl)cc3C(C(=O)Nc3cncc4ccccc34)C2)CN1
O=C1C[C@@H](N2Cc3ccc(Cl)cc3C(C(=O)Nc3cncc4ccccc34)C2)CN1
O=C(Nc1cncc2ccccc12)C1CN([C@@H]2CCNC2=O)Cc2ccc(Cl)cc21
O=C(Nc1cncc2ccccc12)C1CN([C@H]2CCNC2=O)Cc2ccc(Cl)cc21
As discussed in a design meeting.