1. Ibid;Aratani;Tetrahedron Letters,1975
2. Organic Synthesis and Tomorrow ( Edited by pp Pergamon Press;Leanza;Med Chem,1979
3. For the racemization and epimerization of chrysanthemic acid isomers see Fukao and;Suzukamo;Chem Letters Tetrahedron Letters,1984
4. gBiol;Murano;Chem,1972