A. Calcagni et al., Psi(SO2NH) transition state isosteres of peptides. Synthesis and bioactivity of sulfonamido pseudopeptides related to carnosine, FARMACO, 54(10), 1999, pp. 673-677
This paper reports the synthesis of tauryl dipeptides related to carnosine.
In particular H-Tau-His-OH (5), H-Tau-His(pi-Me)-OH (6) and H-Tau-His(tau-
Me)-OH (9) are described. The enzyme carnosinase has been isolated from pig
kidney and after purification has been used to test the stability and the
inhibitory activity of the three new analogues. H-Tau-His-OH (5) and H-Tau-
Kis(tau-Me)-OH (9) were found to possess weak inhibitory properties towards
carnosinase, while H-Tau-His(pi-Me)-OH (6) proved to be devoid of any sign
ificant activity. All the three sulfonamido pseudopeptides 5, 6 and 9 show
stability to carnosinase activity. (C) 1999 Elsevier Science S.A. All right
s reserved.