NOVEL PEPTIDE AND PRODUCTION THEREOF

摘要

NEW MATERIAL:The compound of formula I [X1 is H, NH2 or RCONH (R is H or 1-3C alkyl; X2 is Thr or Pro; X3 is 3-6C alpha-amino acid residue; X4 is Ser or Thr; X5 is Gln or Glu; X6 is H, COOH or CONH2; X7 is S-S or CH2-CH2]. EXAMPLE:The compound of formula II. USE:An elastase inhibitor. Effective against diseases such as pulmonary emphysema or rheumatism. PREPARATION:The peptide can be produced by oxidizing the peptide of formula III.