81131-74-0Relevant academic research and scientific papers
He the sandbank contains the fluorine derivative and use thereof
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Paragraph 0273; 0274; 0275, (2017/08/26)
The present invention belongs to the field of pharmaceutical chemistry, and provides 3-hydroxy-3-methylglutaryl-CoA reductase inhibitor, wherein a fragment containing 3-fluoro-caprolactone and a lactone thereof are subjected to ring opening to form a poly-substituted pyrimidine statin fluorine-containing modifier of 1-fluoro-3-hydroxy-pentanoic acid and a salt or ester thereof, ie., the 3-hydroxy-3-methylglutaryl-CoA reductase inhibitor, and the structure formula is defined in the specification. According to the present invention, the test results show that the compounds have the HMG-CoA reductase activity inhibition effects, and can be used as the new generation of the potential HMG-CoA reductase inhibitors.
Fermentation Medias and Processes Thereof
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Page/Page column, (2014/05/25)
The present invention demonstrates the utility of carbonic acid amides such as urea or its derivatives, carbamates, carbodiimides & thiocarbamides as nitrogenous supplements in fermentation media for production of recombinant proteins to achieve enhanced bioconversion rates and peptides like insulin and insulin analogues, exendin and enzymes such as lipase using methanol inducible fungal expression systems such as Pichia.
In situ bioconversion of compactin to pravastatin by Actinomadura species in fermentation broth of Penicillium citrinum
Ahmad, Ajaz,Mujeeb, Mohd,Kapoor, Rohit,Panda, Bibhu Prasad
, p. 667 - 671 (2013/07/26)
The biocatalytic production of pravastatin from compactin by hydroxylation has found many applications in health care and pharmaceuticals. Actinomadura macra, Actinomadura madurae, and Actinomadura livida can efficiently bioconvert compactin to pravastatin. The fermentation broth (Penicillium citrinum fermented media) harvested on the eighth day contained 388.90 mg L-1 of compactin and an undetectable level of mycotoxin (citrinin). Bioconversion by A. macra was highest (87 %) in the yeast extract-amended medium. The anti-actinomadura effects of citrinin reduce the bioconversion capacity of Actinomadura. The in situ hydroxylation of compactin produced by P. citrinum represents a preferable alternative for the use of purified compactin, as a way to reduce cost and time processing.
Methods for predicting the response to statins
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, (2011/10/13)
The invention provides methods for optimizing therapeutic efficacy for treating hypercholesterolemia in a subject having a cardiovascular disease (CVD), comprising (a) determining subject characteristics that affect the likelihood of reaching a goal level of low density lipoprotein (LDL); and (b) obtaining success probabilities of a variety of statin treatments for reaching said goal level of LDL using said subject characteristics and a multivariate model; and (c) administrating the optimal statin treatment with the highest success probability of step (b) to said subject thereby optimizing therapeutic efficacy for treating hypercholesterolemia in said subject.
Drug or Supplement Combination with Conjugated Linoleic Acid for Fat Loss in Mammals
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, (2010/06/22)
Food, feed or drug combinations with conjugated linoleic acid are described that cause enhanced fat loss in mammals more efficiently than any of the individual components of the combination. Food, feed, or drugs that activate AMP activated protein kinase, agonists of nuclear receptors that bind RXR in adipocytes, or statin inhibitors were found to be more effective for fat loss when combined with conjugated linoleic acid.
Efficient biotransformations using Escherichia coli with tolC acrAB mutations expressing cytochrome P450 genes
Fujii, Tadashi,Fujii, Yoshikazu,Machida, Kazuhiro,Ochiai, Atsushi,Ito, Masashi
experimental part, p. 805 - 810 (2009/10/10)
We report here some efficient biotransformations using Escherichia coli strains with disruptions for the AcrAB-TolC efflux pump system. Biotransformations of compactin into pravastatin (6α-hydroxy-iso- compactin) were performed using E. coli strains with tolC and/or acrAB mutations expressing a cytochrome P450 (P450) gene. The production levels of pravastatin using strains with acrAB, tolC, and tolC acrAB mutations increased by 3.7-, 7.0-, and 7.1-fold, respectively. Likewise, the production levels of 25-hydroxy vitamin D3 and 25-hydroxy 4-cholesten 3-one using tolC acrAB mutant strains expressing an individual P450 gene increased by 2.2- and 16-fold, respectively. The enhancement of this biotransformation efficiency could be explained by increases in the intracellular amounts of substrates and the concentrations of active P450s. These results demonstrate that we have achieved versatile methods for efficient biotransformations using E. coli strains with tolC acrAB mutations expressing P450 genes.
Capillary electrophoresis determination of pravastatin and separation of its degradation products
Nigovic, Biljana,Vegar, Ivana
experimental part, p. 615 - 622 (2009/12/03)
A capillary zone electrophoresis method for pravastatin determination was developed and validated. Rapid migration of negatively charged pravastatin molecule was obtained in alkaline buffer by the application of electric field of 30 kV. Influence of the pH value and ionic strength of running buffer, applied voltage and capillary temperature on mobility and sensitivity was evaluated. Detection wavelength was set to 237 nm. The method was applied to the determination of the drug in pharmaceutical dosage form. Pravastatin is a δ-hydroxy acid, which is prone to lactonize and epimerize in a pH-dependent manner. Micellar electrokinetic chromatographic approach was chosen to develop a method able to separate pravastatin and its degradation products in acidic media. The proposed method allows baseline separation of hydroxy acid and neutral lactone forms of the drug that appear as interconversion products depending on the pH value.
PROCESS FOR THE PREPARATION OF PRAVASTATIN
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Page/Page column 6, (2008/06/13)
The invention relates to a process for the preparation of pure pravastatin or a salt thereof using an adsorption chromatography technique. The invention also relates to pharmaceutical compositions that include the pure pravastatin and to use of the compositions for treating hypercholesterolemia.
Strains of saccharaothrix, process for producing pravastain using the strains and isolation process of (HMG)-CoA reductase
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, (2008/06/13)
The present invention provides two new microorganism strains of Saccharothrix, designated as YS-44442 and YS-45494, a process of producing pravastatin using the strains, and an improved process for isolation of (HMG)-CoA reductase inhibitors.
Method of purifying pravastatin
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Page/Page column 7, (2008/06/13)
The present invention provides pure pravastatin compositions and pure compactin compositions, and methods for the preparation thereof.
