21085-72-3Relevant articles and documents
Synthesis and positive inotropic activity evaluation of liguzinediol metabolites
Zhu, Hao-Hao,Chen, Yu-Qing,Cheng, Dong,Li, Wei,Wang, Tian-Lin,Wen, Hong-Mei,Chen, Long,Liu, Jian
, p. 882 - 884 (2016)
2,5-Dihydroxymethyl-3,6-dimethylpyrazine (liguzinediol) has been recently discovered as a potential agent for treatment of heart failure with low safety risk. In the present study, four main metabolites of liguzinediol were synthesized and their positive inotropic activities were evaluated. Synthetic compounds were identical with the isolated metabolites of liguzinediol. Pharmacological examinations showed that the four major metabolites were not observed positive inotropic activity, and revealed that the positive inotropic activity of liguzinediol was essentially attributed to the parent agent.
Synthesis and Antimicrobial Activity of Glucuronosyl Derivatives of Steviolbioside from Stevia rebaudiana
Sharipova,Andreeva,Strobykina, I. Yu.,Voloshina,Strobykina,Kataev
, p. 1107 - 1111 (2017)
Glucuronosyl derivatives of the glycoside steviolbioside from Stevia rebaudiana were synthesized for the first time. Steviolbioside exhibited selective bacteriostatic and bactericidal activity against S. aureus ATCC 209p with minimum inhibitory concentration (MIC) of 62.5 μg/mL, which corresponded to the activity of the antibiotic chloramphenicol.
Solid state structure of sodium β-1-thiophenyl glucuronate identifies 5-coordinate sodium with three independent glucoronates
Alharthi, Fahad Ayesh,Whitehead, George F.S.,Vitórica-Yrezábal, I?igo J.,Gardiner, John M.
, (2021)
Glucuronic acid is a key component of the glycosaminoglycans (GAGs) Chrondroitin Sulfate (CS), Heparin/Heparan sulfate (HS) and Hyaluronic Acid (HA), as well an important metabolite derivative. In biological systems the carboxylate of uronic acids in GAGs is involved in important H-binding interactions, and the role of metal coordination, such as sodiated systems, has indications associated with a number of biological effects, and physiological GAG-related processes. In synthetic approaches to GAG fragments, thioglycoside intermediates, or derivatives from these, are commonly employed. Of the reported examples of sodium coordination in carbohydrates, 6-coordinate systems are usually observed often with water ligands involved, Herein we report an unexpected 5-coordinate sodiated GlcA crystal structure of the parent GlcA, but as a thioglycoside derivative, whose crystal coordination differs from previous examples, with no involvement of water as a ligand and containing a distorted trigonal bypramidal sodium with each GlcA having five of 6 oxygens sodium-coordinated.
Development of synthetic approaches to macrocyclic glycoterpenoids on the basis of glucuronic acid and diterpenoid isosteviol
Andreeva,Sharipova,Strobykina, I. Yu.,Kravchenko,Strobykina,Voloshina,Musin,Kataeva
, p. 1324 - 1333 (2015)
An approach has been developed to the synthesis of macrocyclic glycoterpenoids containing diterpenoid isosteviol and glucuronic acid fragments. Selective screening revealed compounds exhibiting antitubercular activity against H37RV, M. Avium, and M. Terrae strains at a level comparable to the known antitubercular drugs isoniazid, ofloxacin, and pyrazinamide. The compound possessing the highest antitubercular activity is non-cytotoxic toward human erythrocytes.
Synthesis and characterization of thienorphine and its glucuronide conjugate
Liu, Chun-He,Liu, He,Han, Xiang-Yu,Wu, Bo,Zhong, Bo-Hua,Gong, Ze-Hui
, p. 701 - 710 (2005)
Thienorphine (1) is a very potent oripavine derivative with mixed agonist and antagonist opioid receptor activities. It was prepared with 7α-acetyl-6,14-endoethenotetrahydrothebaine as stated material by Grignard reaction, cyanidation, demethylation, and N-alkylation. The structure of 1 · HCl was elucidated by X-ray analysis. As part of a continuing program to define the metabolism and distribution of thienorphine in animals and man, the putative metabolite, 3-glucuronide, was synthesized.
Chemical synthesis of 5’-β-glycoconjugates of vitamin B6
Bachmann, Thomas,Schnurr, Christian,Zainer, Laura,Rychlik, Michael
supporting information, (2020/02/15)
Various 5’-β-saccharides of pyridoxine, namely the mannoside, galactoside, arabinoside, maltoside, cellobioside and glucuronide, were synthesized chemically according to KOENIGS-KNORR conditions using α4,3-O-isopropylidene pyridoxine and the respective acetobromo glycosyl donors with AgOTf (3.0 eq.) and NIS (3.0 eq.) as promoters at 0 °C. Furthermore, 5’-β-[13C6]-labeled pyridoxine glucoside (PNG) was prepared starting from [13C6]-glucose and pyridoxine. Additionally, two strategies were examined for the synthesis of 5’-β-pyridoxal glucoside (PLG).
Preparation method of ethyl glucuronide and ethyl sulfate of ethyl alcohol non-oxidative metabolite
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Paragraph 0037-0040; 0044-0047; 0049-0052, (2020/06/09)
The invention relates to a preparation method of ethyl glucuronide and ethyl sulfate of ethyl alcohol non-oxidative metabolite, and belongs to the field of compound preparation. According to the preparation method, glucuronolactone is used as a basic reaction raw material, the ethyl glucuronide of the ethyl alcohol non-oxidative metabolite can be obtained by reacting under ultrasonic, water bath heating and other conditions through a triacetyl bromide glucuronic acid methyl ester intermediate, and the preparation method has the advantages of low environmental factors, simple operation and easyrealization; and in addition, absolute ethyl alcohol and sulfuric acid are used as raw materials, and the ethyl sulfate of the ethyl alcohol non-oxidative metabolite is obtained through heating, filtration, precipitation, water bath evaporating and other operations, and the preparation method has the advantages of wide source of raw materials, low requirements for environmental factors, simple operation and easy realization.
Practical Synthesis of the Fluorogenic Enzyme Substrate 4-Methylumbelliferyl α- L -Idopyranosiduronic Acid
Bai, Jiang,Ding, Haixin,He, Yanling,Ning, Qianqian,Ouyang, Wenliang,Tian, Jiameng,Xiao, Qiang
supporting information, p. 1083 - 1086 (2020/07/03)
A practical and concise synthesis of 4-methylumbelliferyl α- l -idopyranosiduronic acid, a fluorogenic enzyme substrate diagnostic for α- l -iduronidase, was accomplished. It features successive radical bromination and radical reduction of easily accessible methyl 4-methyl umbelliferyl-2,3,4-tri- O -acetyl-β- d -glucouronate in four steps with 28percent overall yield.
COMPOUNDS, COMPOSITIONS, METHODS, AND USES FOR TREATING CANCER AND IMMUNOLOGICAL DISORDERS
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Paragraph 0546; 0568, (2020/02/06)
The present disclosure provides novel polypeptide-therapeutic compound or hormone-therapeutic compound conjugates using cleavable or non-cleavable linkers, whereby the polypeptide or hormone serves to target specific cells using receptor expression on the targeted cell to bind the ligand (polypeptide or hormone) carrying the therapeutic compound unlike antibody drug conjugates. Upon binding, the ligand and the therapeutic compound (multiples of the therapeutic compound in some embodiments) enter the cell by receptor-mediated endocytosis, and release drugs conjugated to the ligand by linkers, to interact with intracellular components to enhance, restore, or block a signal transduction process. The ligands for the polypeptide-therapeutic compound or hormone-therapeutic compound conjugates include, but are not limited to: cytokines, growth factors and hormones among other proteins with corresponding cell surface specific receptors. The disorders targeted by such polypeptide-therapeutic compound or hormone-therapeutic compound conjugates include, but are not limited to: immunological disorders (e.g., allergy and autoimmune disorders) and cancer.
METABOLITES OF BICTEGRAVIR
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Paragraph 0096; 0097, (2019/08/02)
The present invention provides metabolites of the antiviral drug bictegravir, including compositions and salts thereof, which are useful in the prevention and/or treatment of HIV as well as analytical methods related to the administration of bictegravir.