... Tetrahedron Letters. Volume 47, Issue 21, 22 May 2006, Pages 3525–3528. Cover image Cover image. ... b Department of Chemistry, Mazandaran University, Babolsar 47416-1467, Iran; c Chemistry and Chemical Engineering Research Center of Iran, Iran. Received 8 February 2006, Revised 3 March 2006, Accepted 15 March 2006, Available online 5 April 2006. Abstract. ... 2; R. Olivera, R. San Martin, E. Dominguez; Tetrahedron Lett., 41 (2000), p. 4357. ...