1. (b) Akutagawa, S.Chirality in Industry; Collins, A. N., Sheldrake, G. N., Crosby, J., Eds.; John Wiley & Sons Ltd. Chichester, 1992; p 313.
2. (d) Nicolaou, K. C.; Sorensen, E. J.Classics in Total Synthesis; VCH: Weinheim, 1996; p 343. For the biosynthesis see (e) Croteau, R. B.; Davis, E. M.; Ringer, K. L.; Wildung, M. R.Naturwissenschaften2005,92, 562.
3. (a) Surburg, H; Panten, J.Common Fragrance and Flavor Materials; Wiley-VCH: Weinheim, 2006; p 54.