1. a) Kupchan S.M., Hemingway R.J., Werner D., Karim A., McPhail A.T., Sim G.A., J. Am. Chem. Soc., 1968, 90, 3596. b) Kupchan S.M., Eakin M., Thomas A., J. Med. Chem., 1971, 14, 1147.
2. (.+-.)-Deoxyvernolepin. A cytotoxic vernolepin prototype
3. a) Banerjee A.J., Vera W.J., González N.C., Tetrahedron, 1993, 49, 4761 and references cited therein. b) Hernández R., Velázquez S.M., Suárez E., Rodríguez M.S., J. Org. Chem., 1994, 59, 6395.
4. a) Yamakawa K., Nishitani K., Chem. Pharm. Bull., 1976, 24, 2810. b) Miyashita M., Suzuki T., Yoshikoshi A., Tetrahedron Lett., 1987, 28, 4293.
5. In this reaction, the simultaneous addition of the mixture of arsantin and TBSCl to LDA is crucial, otherwise significant amounts of the enone I are obtained.