... Tetrahedron Letters. Volume 35, Issue 26, 27 June 1994, Pages 4559–4562. Cover image Cover image. ... b Département Chimie Fine et Bioconversions, GRL (Elf Aquitaine) 64170 Lacq, France. Received 26 January 1994, Accepted 5 May 1994, Available online 9 March 2001. ...