1. Garegg, P. J.; Maloisel, J.-L.; Oscarson, S. Synthesis 1995, 409.
2. Auge, C.; David, S.; Veyrieres, A. J. Chem. Soc., Chem. Commun. 1976, 375.
3. Nashed, M. A.; Anderson, L. Tetrahedron Lett. 1976, 3505.
4. Haque, M. E.; Kikuchi, T.; Yoshimoto, K.; Tsuda, Y. Chem. Pharm. Bull. 1985, 33, 2243; Tsuda, Y. J. Synth. Org. Chem. Jpn. 1997, 55, 907.
5. Ogawa, T.; Katano, K.; Matsui, M. Carbohydr. Res. 1978, 64, C3.