1. Review: Pestka, S. In Antibiotics; Gottlieb, D.; Shaw, P. D.; Corcoran, J. W., Eds.; Springer-Verlag: New York, NY, 1975; Vol. 3, p. 480 ff. See also Refs. 6–9 and literature cited therein.
2. E.g.: (a) Bagley, M. C.; Bashford, K. E.; Hesketh, C. L.; Moody, C. J. J. Am. Chem. Soc. 2000, 122, 3301;
3. (b) Okamura, K.; Saito, H.; Shin, C.-G.; Umemura, K.; Yoshimura, J. Bull. Chem. Soc. Jpn. 1998, 71, 1863;
4. (c) Ciufolini, M. A.; Shen, Y.-C. J. Org. Chem. 1997, 62, 3804 and references cited therein.
5. For pioneering work in this area, see, e.g.: (d) Kelly, T. R.; Jagoe, C. T.; Gu, Z. Tetrahedron Lett. 1991, 32, 4263;