1. For the preceding paper in this series, see Taylor, E.C.; Macor, J.E. J. Org. Chem., in press
2. Furopyridines. II. Bromination and nitration of furo[2,3-b]-, furo[3,2-b]-, furo[2,3-c]- and furo[3,2-c]pyridine
3. Lunn, W.H.W.; Vasileff, R.T. (Eli Lilly & Co.), U.S. Patent 4,406,898, 9/27/83 (CA 100(3): 22513e).