Peptide derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai

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530330, 530331, A61K 3806, A61K 3807

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active

057261580

ABSTRACT:
The invention concerns pharmaceutically useful trifluoromethyl ketone substituted di-, tri- and tetra-peptide derivatives of the formulae Ia, Ib, Ic set out hereinafter, and salts thereof, which are inhibitors of human leukocyte elastase. Also described herein are pharmaceutical compositions containing a peptide derivative and processes and intermediates for use in the manufacture of the peptide derivatives.

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