... Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 44, Issue 6, 3 February 2003, Pages 1275–1278. Cover image Cover image. ... (c) J. Cossy, S. Bouzbouz, M. Lachgar, A. Hakiki, B. Tabyaoui; Tetrahedron Lett., 39 (1998), pp. 2561–2594. ...