title: Polycyclic N-hetero compounds. II. Synthesis of 11,13,15-triazasteroidal skeleton.
mesh_terms: D001372:Aza Compounds / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D011799:Quinazolines / Q000138:chemical synthesis*; D013256:Steroids
chemical_list: D001372:Aza Compounds; D011799:Quinazolines; D013256:Steroids