Studies on the β-turn of peptides. VII. Syntheses and antibiotic activities of gramicidin S analogs with L-Pro-L-Asn or L-Pro-d-Ala sequence at the β-turn part

Article abstract of DOI:10.1246/bcsj.56.3329

Two analogs of gramicidin S (GS), left bracket L-Pro**4**,**4 prime , L-Asn**5**,**5 prime right bracket -GS and left bracket L-Pro**4**,**4 prime , D-Ala**5**,**5 prime right bracket -GS were synthesized to investigate the possibility of replacing the be