1. (a) Dabrah, T. T.; Kaneko, T.; Massefski Jr., W.; Whipple, E. B. J. Am. Chem. Soc. 1997, 119, 1594–1598.
2. Non-systematic numbering is used in diagram 2, and the corresponding numbers are used for all other structures.
3. Dabrah, T. T.; Harwood Jr., H. J.; Huang, L. H.; Jankovich, N. D.; Kaneko, T.; Li, J.-C.; Lindsey, S.; Moshier, P. M.; Subashi, T. A.; Therrien, M.; Watts, P. C. J. Antibiot. 1997, 50, 1–7.
4. Total synthesis of 2: (a) Nicolaou, K. C.; Baran, P. S.; Zhong, Y.-L.; Choi, H.-S.; Yoon, W. H.; He, Y.; Fong, K. C. Angew. Chem., Int. Ed. Engl. 1999, 38, 1669–1675. (b) Nicolaou, K. C.; Baran, P. S.; Zhong, Y.-L.; Fong, K. C.; He, Y.; Yoon, W. H.; Choi, H.-S. Angew. Chem., Int. Ed. 1999, 38, 1676–1678. (c) Nicolaou, K. C.; Jung, J.-K.; Yoon, W. H.; He, Y.; Zhong, Y.-L.; Baran, P. S. Angew. Chem., Int. Ed. 2000, 39, 1829–1832. (d) Cf. Meng, D.; Tan, Q.; Danishefsky, S. J. Angew. Chem., Int. Ed. 1999, 38, 3197–3201.
5. For a list of model studies, see: (a) Ref. 6c. For further references, see: (b) Nicolaou, K. C.; He, Y.; Fong, K. C.; Yoon, W. H.; Choi, H.-S.; Zhong, Y.-L.; Baran, P. S. Org. Lett. 1999, 1, 63–66. (c) Nicolaou, K. C.; Baran, P. S.; Jautelat, R.; He, Y.; Fong, K. C.; Choi, H.-S.; Yoon, W. H.; Zhong, Y.-L. Angew. Chem., Int. Ed. 1999, 38, 549–552. (d) Yoshimitsu, T.; Yanagiya, M.; Nagaoka, H. Tetrahedron Lett. 1999, 40, 5215–5218. (e) Sulikowski, G. A.; Agnelli, F.; Corbett, R. M. J. Org. Chem. 2000, 65, 337–342.