摘要:
Antibiotic A-4696 factors B.sub.1, B.sub.2, B.sub.3, C.sub.1a, C.sub.3, and E.sub.1 are isolated from antibiotic A-4696, the latter being produced by Actinoplanes missouriensis strains ATCC 31680, ATCC 31682, and ATCC 31683 under submerged aerobic conditions in a culture medium and isolated from the fermentation broth by absorption on an ion exchange resin and eluted therefrom at p.sup.H 10.5 with sodium hydroxide. The novel factors are separated by thin layer chromatography and high pressure liquid chromatography and have antimicrobial and growth promotant activity.
摘要:
A novel antibiotic substance, named "Mycoplanecin", of presently unknown structural formula, is produced by cultivating a Mycoplanecin-producing microorganism of the genus Actinoplanes, especially the Actinoplanes nov. sp. Strain No. 41042, NRRL No. 11462.
摘要:
Antibiotic A-4696 pseudo-aglycone, produced by mild acid hydrolysis of the actaplanin antibiotic A-4696 complex, has antibacterial and growth promotant activity.
摘要:
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.
摘要:
The invention relates to an amylase inhibitor for glycosidehydrolases derived from a new strain of micro-organism, mutants and variants thereof, of the order Actinomycetales, means for their production comprising cultivation of the new strain of the order Actinomycetales, mutants and variants thereof, in appropriate nutrient solutions under conditions most favorable to growth and production of said amylase inhibitor and recovering an amylase inhibitor from culture broths of said nutrient solutions and said new strain of microorganism, mutants and variants thereof, of the order Actinomycetales as well as the use of said enzyme inhibitor in pharmaceutically acceptable therapeutic compositions suitable for use in the treatment and relief of conditions indicative of obesity, diabetes, pre-diabetes, gastritis, gastric and duodenal ulcers, 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 enzyme in the presence of a glycoside-hydrolase enzyme inhibitor derived from a new strain, mutants and variants thereof, of the order Actinomycetales. The invention further contemplates the provision of method for the treatment of indications of the group consisting of obesity, hyperlipidemia (atheriosclerosis), diabetes, pre-diabetes, gastritis, gastric ulcer, duodenal ulcer and dental caries induced by the action of glycoside-hydrolase enzymes and carbohydrates which comprises employing an enzyme inhibitor for glycoside-hydrolase enzymes produced by a new strain of microorganism of the order Actinomycetales of the family Actinoplanaceae.
摘要:
A bacterial strain of Actinoplanes sp. and and the use thereof. The bacterial strain is named Actinoplanes sp. HS-16-20, whose preservation number is CGMCC (China General Microbiological Culture Collection Center) No. 7294. The bacterial strain can be used to generate Fidaxomicin or analogs thereof or compositions containing Fidaxomicin, such as by aerobically fermenting the strain in nutrient medium containing assimilable carbon and/or nitrogen sources. Fidaxomicin has an inhibitory effect on various gram positive bacteria pathogens, and in particular, on Clostridium difficile.
摘要:
The present invention concerns novel lantipeptide (lanthionine-containing peptide) compounds having general formula (I), a process for their preparation, the key intermediates in said processes, their pharmaceutical acceptable salts and pharmaceutical compositions containing them, as well as their use in the treatment of pain.
摘要:
The present invention relates to a novel lantibiotic having the formula NH.sub.2 --R-actagardine, where NH.sub.2 --R is the radical of the amino acid alanine, which is formed by the microorganism Actinoplanes liguriae, DSM 11797 or Actinoplanes garbadiensis, DSM 11796 during fermentation, chemical derivatives of the lantibiotic, a process for its preparation and the use of the lantibiotics as pharmaceuticals.