Peptidase inhibitors

Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – 8 to 10 amino acid residues in defined sequence

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530329, 530330, 530331, 562575, 562560, 562444, 562445, C07K 500, C07K 700, C07K 1700, A61K 3800

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active

054969271

ABSTRACT:
This invention relates to analogs of peptidase substrates in which the amide group containing the scissile amide bond of the substrate peptide has been replaced by an activated electrophilic ketone moiety. These analogs of the peptidase substrates provide specific enzyme inhibitors for a variety of proteases, the inhibition of which will have useful physiological consequences in a variety of disease states.

REFERENCES:
patent: 4277395 (1981-07-01), Bey et al.
patent: 4518528 (1985-05-01), Rasnick
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Powers, J. C., et al., "Specificity of Porcine Pancreatic Elastase, Human Leukocyte Elastase and Cathepsin G," Biochimica et Biophysica Acta 485, 156-166 (1977).
Imperiali, B., et al., "Inhibition of Serine Proteases by Peptidyl Fluoromethyl Ketones," Biochemistry 25, Imperiali et al., 3760-7 (1986).
Chemical Abstracts vol. 92, 175119 (1980).
Hori, H., et al., "Inhibition of Human Leukocyte Elastase, Porcine Pancreatic Elastase and Cathepsin G by Peptide Ketones," Enzyme Inhibitors, Proceedings of the Ninth American Peptide Symposium pp. 819-822 (1985).
Thaisrivongs, S., et al., "Diflourostatine-and Difluorostatone-Containing Peptides as Potent and Specific Renin Inhibitors," J. of Med. Chem., vol. 28, No. 11, 1553-5 (1985).
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Peet, N. P., et al, "Synthesis of Peptidyl Fluoromethyl Ketones and Peptidyl .alpha.-Keto Esters as Inhibitors of Porcine Pancreatic Elastase, Human Neutrophil Elastase, and Rat and Human Neutrophil Cathepsin G", J. Med. Chem. 33, pp. 34-407, (1990).
Angelastro M. R., et al, "Synthesis of a Peptidyl 2,2-Difluoro-3-Aminopropionate", Bioorganic & Medicinal Chemistry Letters, vol. 2, No. 10, pp. 1235-1238, (1992).
Angelastro M. R., et al., ".alpha.-Diketone and .alpha.-Keto Ester Derivatives of N-Protected Amin Acids and Peptides as Novel Inhibitors of Cysteine and Serine Proteinases" J. Med. Chem. 33, pp. 11-13, (1990).
H. Hitoshi et al., "Inhibition of Human Leukocyte Elastase, Porcine Pancreatic Elastase and Cathepsin G by Peptide Ketones", Enzyme Inhibitors, pp. 819-822 (no date available).
Journal of Medicinal Chemistry, vol. 28, No. 11 (Nov. 1985) pp. 1553-1555.
M. H. Gelb et al., Biochemistry, vol. 24, No. 8, Apr. 9, 1985, pp. 1813-1817.
Thaisrivongs, S. et al., Journal of Medicinal Chemistry, vol. 28, No. 11 (Nov. 1985) pp. 1553-1555.

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