F. Cavelier et J. Verducci, NEW SYNTHESIS OF THE CYCLIC TETRAPEPTIDE TENTOXIN EMPLOYING AN AZLACTONE AS KEY INTERMEDIATE, Tetrahedron letters, 36(25), 1995, pp. 4425-4428
An improved preparation of the cyclic tetrapeptide Tentoxin is reporte
d employing an azlactone as key intermediate. This new synthetic route
offers the advantage over existing methodologies that the dehydro ami
no acid would easily be varied, thus allowing the simple preparation o
f analogues.