About CONFALONE P N
About E.I. du Pont de Nemours & Co. Inc., Delaware, USA
About Journal of Heterocyclic Chemistry
About polynuclear aromatic compound
About bridged compound
About Eight or more-membered heterocyclic compounds
About Other condensed derivatives of pyridine
About Nucleosides,nucleotides
About Maytansine
About Discorhabdin C
About 天然化合物
About 複素環化学