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US3876766A Expired / Lapsed US ⏱️ 0.0 years remaining

Glycoside-hydrolase enzyme inhibitors

Assignee: Bayer AG
•
Filing: 1971-12-28
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Granted: 1975-04-08
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Expires: 1991-12-28
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Abstract

Abstract This invention relates to inhibitors for glycoside-hydrolases derived from bacteria of the order Actinomycetales, means for their production comprising cultivation of a microorganism of the order Actinomycetales in appropriate nutrient solutions under conditions most favorable to growth and production of the enzyme inhibitor and recovering, as a new product, glycoside-hydrolase enzyme inhibitors, from the culture as well as the use of said enzyme inhibitors in pharmaceutically acceptable therapeutic compositions in the treatment of conditions indicating obesity, diabetes, pre-diabetes, gastritis, gastric ulcer, hyperlipidemia (atheriosclerosis) and the like. The invention also contemplates the provision of methods of inhibiting the reaction of carbohydrates and glycoside-hydrolase enzymes and particularly carbohydrate-splitting glycoside-hydrolase enzymes of the digestive tract by means of conducting said reaction of said carbohydrates and glycoside-hydrolase enzymes in the presence of a glycoside-hydrolase enzyme inhibitor for said glycosidehydrolase enzyme derived from a strain of microorganism of the order Actinomycetales. The invention further contemplates the provision of methods for the treatment of indications of the group consisting of obesity, hyperlipidemia (atheriosclerosis), diabetes, pre-diabetes, gastritis, gastric ulcer, duodenal ulcer, and caries induced by the action of glycoside-hydrolase enzymes and carbohydrates, the improvement which comprises employing an enzyme inhibitor for glycoside-hydrolase enzymes produced by a strain of microorganism of the order Actinomycetales.

Inventors

  • 👤 Werner Frommer
  • 👤 Walter Puls
  • 👤 Dietmar Schafer
  • 👤 Delf Schmidt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 12:16
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61P; A61P1/00; A61P1/04; A61P3/00; A61P3/04; A61P3/08; C; C12; C12P; C12P1/00; C12P1/04; C12P1/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/896; Y10S435/907

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 129 words
A GLYCOSIDE-HYDROLASE ENZYME INHIBITOR PRODUCED BY A METHOD COMPRISING CULTURING A MICROORGANISM OF THE ORDER ACTINOMYCETALES AT A TEMPERATURE OF 15*-60*C. AND A PH OR 6-8 FOR AN INCUBATION PERIOD OF ABOUT 1-10 DAYS AND EXTRACTING THE ENZYME INHIBITOR FROM THE RESULTANT CULTURE, WHEREIN SAID ENZYME INHIBITOR: A. IS SUBSTANTIALLY HEAT-STABLE AT NEUTRAL PH VALUES; IS STABLE TO ACID AT PH 2; C. IS STABLE TO ALKALI AT PH 12; D, IS SLOWLY DIALYZALE; E. IS NOT INACTIVATED BY TRYPSIN OR PEPSIN; F. DOES NOT INHIBIT TRYPSIN OR PEPSIN; G. IS NOT RECEPTIVE TO PROTEIN DYES; H. IS FREE FROM CHARACTERISTIC UV ADSORPTION UP TO 250 NM; I. IS NOT INHIBITED BY UREA OF B-MERCAPTOETHANOL; J. IS OF MELECULAR WEIGHT ABOUT 500-6000; AND K. YEILDS MONOSACCHARIDE ON HYDROLYTIC SPLITTING.
Claim 2
Dependent Claim 129 words
A GLYCOSIDE-HYDROLASE ENZYME INHIBITOR PRODUCED BY A METHOD COMPRISING CULTURING A MICROORGANISM OF THE ORDER ACTINOMYCETALES AT A TEMPERATURE OF 15*-60*C. AND A PH OR 6-8 FOR AN INCUBATION PERIOD OF ABOUT 1-10 DAYS AND EXTRACTING THE ENZYME INHIBITOR FROM THE RESULTANT CULTURE, WHEREIN SAID ENZYME INHIBITOR: A. IS SUBSTANTIALLY HEAT-STABLE AT NEUTRAL PH VALUES; IS STABLE TO ACID AT PH 2; C. IS STABLE TO ALKALI AT PH 12; D, IS SLOWLY DIALYZALE; E. IS NOT INACTIVATED BY TRYPSIN OR PEPSIN; F. DOES NOT INHIBIT TRYPSIN OR PEPSIN; G. IS NOT RECEPTIVE TO PROTEIN DYES; H. IS FREE FROM CHARACTERISTIC UV ADSORPTION UP TO 250 NM; I. IS NOT INHIBITED BY UREA OF B-MERCAPTOETHANOL; J. IS OF MELECULAR WEIGHT ABOUT 500-6000; AND K. YEILDS MONOSACCHARIDE ON HYDROLYTIC SPLITTING.
Claim 3
Dependent Claim 21 words
A pharmaceutical composition comprising an effective amount of the glycoside-hydrolase enzyme inhibitor of claim 1 in admixture with a pharmaceutically-acceptable diluent.
Claim 4
Dependent Claim 10 words
The pharmaceutical composition of claim 2 in dosage unit form.
Claim 5
Dependent Claim 40 words
In a method for treating diabetes induced by the interaction of carbohydrate-splitting enzymes and carbohydrates in the digestive tract, the improvement which comprises administering to a patient suffering therefrom an effective amount of the glycoside-hydrolase enzyme inhibitor of claim 1.

References Cited (Backward Citations)

US3127315A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-04-07 1978-10-07 1979-04-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-04-07 1982-10-07 1983-04-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-04-07 1986-10-07 1987-04-08 $7700.00 Window Closed / Lapsed

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