title: Single crystal x-ray structures of chemotherapeutic agents. 3. Structure of 1,4-diazabicyclo[2.2.1]heptanes, a new heterocyclic ring system.
mesh_terms: D001952:Bridged-Ring Compounds; D003461:Crystallography; D003508:Cycloheptanes; D008961:Models, Structural; D010879:Piperazines
chemical_list: D001952:Bridged-Ring Compounds; D003508:Cycloheptanes; D010879:Piperazines