M. Boggian et al., SYNTHESIS, BIOLOGICAL-ACTIVITY AND CONFORMATIONAL STUDIES OF GEOMETRICALLY RESTRICTED TRIPEPTIDE ANALOGS OF THE CHEMOATTRACTANT HCO-MET-LEU-PHE-OME, Il Farmaco, 52(6-7), 1997, pp. 439-444
The formyl tripeptides containing 2-azetidinecarboxylic acid 2, 2-pipe
ridinecarboxylic acid 3 and norvaline 4 in position 2 were synthesized
and their biological activity was evaluated. The conformation of pept
ides was studied by CD and FT-IR techniques. While 2 and 3 do not show
either chemotactic activity or superoxide production, 4 retains both
activities.