Ethyl 5-chloro-4-formyl-1-methyl-1H-pyrazole-3-carboxylate - CAS 946061-21-8
Catalog number: 946061-21-8
Category: Main Product
Molecular Formula:
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Boiling Point:
356.1ºC at 760 mmHg
1.Effects of N-acetylcysteine and ethyl pyruvate on ischemia-reperfusion injury in experimental electrical burn model.
Suha T1, Asli M2, Aynur S2, Yunus K2, Ahmet M3, Selim D3, Esin Y4, Ozgur T2, Ari NS4, Süleyman T2. Am J Emerg Med. 2016 Mar 15. pii: S0735-6757(16)00214-X. doi: 10.1016/j.ajem.2016.03.032. [Epub ahead of print]
OBJECTIVES: This study was planned as a histopathologic evaluation of the effectiveness of ethyl pyruvate (EP) and N-acetylcysteine (NAC) in reducing electric burn-related organ damage in an experimental model.
2.Design and synthesis of some novel 4-Chloro-N-(4-(1-(2-(2-cyanoacetyl)hydrazono)ethyl)phenyl) benzenesulfonamide derivatives as anticancer and radiosensitizing agents.
Ghorab MM1, Ragab FA2, Heiba HI3, Soliman AM3. Eur J Med Chem. 2016 Apr 6;117:8-18. doi: 10.1016/j.ejmech.2016.04.009. [Epub ahead of print]
A novel series of sulfonamide derivatives 4-21 have been synthesized starting from the strategic starting material (E)-4-Chloro-N-(4-(1-(2-(2-cyanoacetyl)hydrazono)ethyl)phenyl) benzenesulfonamide 4. Two series of hydrazone 5-9, and pyridone 10-21 derivatives bearing a sulfonamide moiety were obtained. All the newly synthesized compounds were evaluated for their in vitro cytotoxic activity against human liver cancer cell line (HepG2). Compounds 4-6, 8, 9, 10-14 and 16-18 showed higher activity compared to doxorubicin as a positive control. The radiosensitizing ability of the most promising compounds 4, 10 and 12 was studied which showed an increase in the cell killing effect of γ-radiation after combination with these derivatives. The molecular design was performed to predict the binding mode of the most promising compounds 4, 10 and 12 with the active site of hCA IX, that showed appropriate fitting with the relevant amino acids in the binding pocket on the basis of standard bond lengths, angles, S score and E conformation data.
3.Influence of solvents on the composition of condensed tannins in grape pomace seed extracts.
Bosso A1, Guaita M2, Petrozziello M2. Food Chem. 2016 Sep 15;207:162-9. doi: 10.1016/j.foodchem.2016.03.084. Epub 2016 Mar 25.
The extracting effectiveness of some solvents (water, ethanol, acetone, ethyl acetate), used as pure or in binary and ternary mixtures, was studied for the extraction of seeds from the fermented pomace of Nebbiolo cv. The aqueous mixtures of acetone provided the highest extraction yields in total polyphenols and total flavonoids. Polyphenolic extracts were also obtained with aqueous mixtures of ethanol or acetone at variable concentrations, and the condensed tannins were quantified with the phloroglucinolysis method. The aqueous mixtures of acetone were more effective than the corresponding aqueous mixtures of ethanol. The solvent influenced the extraction yield and the composition of the extracts: with the increase of the yield, the mean degree of polymerization (mDP) of the condensed tannins increased. A significant correlation was noticed between mDP and the molar percentages of (+)-catechin as terminal unit (negative correlation), and of (-)-epicatechin and (-)-epicatechin-3O-gallate as extension units (positive correlation).
4.Application of AlkBGT and AlkL from Pseudomonas putida GPo1 for selective alkyl ester ω-oxyfunctionalization in Escherichia coli.
van Nuland YM1, Eggink G2, Weusthuis RA3. Appl Environ Microbiol. 2016 Apr 15. pii: AEM.00822-16. [Epub ahead of print]
The enzyme system AlkBGT fromPseudomonas putidaGPo1 can efficiently ω-functionalize fatty acid methyl esters. Outer membrane protein AlkL boosts this ω-functionalization. In this study it is shown that whole-cells ofE. coliexpressing the AlkBGT system can also ω-oxidize ethyl nonanoate (NAEE). Co-expression of AlkBGT and AlkL resulted in 1.7-fold higher ω-oxidation activity on NAEE. With this strain, initial activity on NAEE was 70 U/gcdw, 67% of the initial activity on methyl nonanoate. In time-lapse conversions with 5 mM NAEE the main product was 9-hydroxy NAEE (3.6 mM), but also 9-oxo NAEE (0.1 mM) and 9-carboxy NAEE (0.6 mM) were formed. AlkBGT also ω-oxidized ethyl, propyl and butyl esters of fatty acids ranging from C6 to C10. Increasing the length of the alkyl chain improved the ω-oxidation activity of AlkBGT on esters of C6 and C7 fatty acids. From these esters, application of butyl hexanoate resulted in the highest ω-oxidation activity of 82 U/gcdw Co-expression of AlkL only had a positive effect on ω-functionalization of substrates with a total length of C11 or longer.
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CAS 946061-21-8 Ethyl 5-chloro-4-formyl-1-methyl-1H-pyrazole-3-carboxylate

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