title: Synthesis of novel N-rich polycyclic skeletons based on azoles and pyridines.
abstract: An efficient method for the synthesis of new polycyclic skeletons: triaza-benzofluorenes and triaza-pentalenonaphthalene from bicyclic privileged structures imidazopyridine and imidazothiazole, respectively, has been described using the Pictet-Spengler cyclization.
authors.affiliation: Combichem Unit, Medicinal Chemistry & Process Division, Central Drug Research Institute, Lucknow 226001, India.
authors.forename: Sunil
authors.initials: S
authors.lastname: Sharma
authors.forename: Biswajit
authors.initials: B
authors.lastname: Saha
authors.forename: Devesh
authors.initials: D
authors.lastname: Sawant
authors.forename: Bijoy
authors.initials: B
authors.lastname: Kundu
mesh_terms: D001393:Azoles / Q000737:chemistry*; D003500:Cyclization; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry / Q000379:methods; D011725:Pyridines / Q000737:chemistry*
chemical_list: D001393:Azoles; D011725:Pyridines