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Convenient Synthesis of N-Alkyl-2-(3-phenyl-quinoxalin-2-ylsulfanyl)acetamides and Methyl-2-[2-(3-phenyl-quinoxalin-2-ylsulfanyl)acetylamino]alkanoates.
El Rayes SM, El-Enany G, Gomaa MS, Ali IAI, Fathalla W, Pottoo FH, Khan FA. El Rayes SM, et al. ACS Omega. 2022 Sep 15;7(38):34166-34176. doi: 10.1021/acsomega.2c03522. eCollection 2022 Sep 27. ACS Omega. 2022. PMID: 36188256 Free PMC article.
A series of 27 new quinoxaline derivatives (N-alkyl-[2-(3-phenyl-quinoxalin-2-ylsulfanyl)]acetamides, methyl-2-[2-(3-phenylquinoxalin-2-ylsulfanyl)-acetylamino]alkanoates, and their corresponding dipeptides) were prepared from 3-phenylquinoxaline-2(1H)-thione based on the …
A series of 27 new quinoxaline derivatives (N-alkyl-[2-(3-phenyl-quinoxalin-2-ylsulfanyl)]acetamides, methyl-2-[2-(3-phenylquinoxalin …
Transformation of Amides to Thioamides Using an Efficient and Novel Thiating Reagent.
Gomaa MS, El Enany G, Fathalla W, Ali IAI, El Rayes SM. Gomaa MS, et al. Molecules. 2022 Nov 27;27(23):8275. doi: 10.3390/molecules27238275. Molecules. 2022. PMID: 36500368 Free PMC article.
A convenient protocol was developed for the transformation of N-aryl-substituted benzamides to N-aryl-substituted benzothioamides using N-isopropyldithiocarbamate isopropyl ammonium salt as a novel thiating reagent. ...
A convenient protocol was developed for the transformation of N-aryl-substituted benzamides to N-aryl-substituted benzothioami …
Use of green fluorescent nano-sensors for the determination of furosemide in biological samples and pharmaceutical preparations.
Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Abo Zaid MH, et al. BMC Chem. 2023 Mar 24;17(1):25. doi: 10.1186/s13065-023-00937-y. BMC Chem. 2023. PMID: 36964587 Free PMC article.
The produced N-CQDs exhibit a strong emission band at 376 nm after excitation at 216 nm. ...The method was found to be linear over the range of 0.1-1.0 g/mL with LOQ of 0.087 g/ml. CONCLUSION: Ecofriendly nano fluorescent sensors (N-CQDs) were successfully synthesiz …
The produced N-CQDs exhibit a strong emission band at 376 nm after excitation at 216 nm. ...The method was found to be linear over th …
Estimation of Two Diuretics Using Fluorescent Nitrogen Doped Carbon Quantum Dots: Application to Spiked Human Plasma and Tablets.
Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Abo Zaid MH, et al. J Fluoresc. 2023 Nov;33(6):2209-2218. doi: 10.1007/s10895-023-03217-z. Epub 2023 Mar 31. J Fluoresc. 2023. PMID: 37000365 Free PMC article.
The produced N-CQDs were applied as nano-sensors for the spectrofluorimetric determination of eplerenone and spironolactone. A strong emission band at 376 nm was obtained after excitation at 216 nm due to the produced N-CQDs. The native fluorescence of N-CQDs …
The produced N-CQDs were applied as nano-sensors for the spectrofluorimetric determination of eplerenone and spironolactone. A strong …
Facile Synthesis of Some Coumarin Derivatives and Their Cytotoxicity through VEGFR2 and Topoisomerase II Inhibition.
Gomaa MS, Ali IAI, El Enany G, El Ashry ESH, El Rayes SM, Fathalla W, Ahmed AHA, Abubshait SA, Abubshait HA, Nafie MS. Gomaa MS, et al. Molecules. 2022 Nov 28;27(23):8279. doi: 10.3390/molecules27238279. Molecules. 2022. PMID: 36500372 Free PMC article.
The coumarin amino acids and dipeptides derivatives were prepared by the reaction of coumarin-3-carboxylic acid with amino acid methyl esters following the N,N-dicyclohexylcarbodiimide (DCC) method and 1-hydroxy-benzotriazole (HOBt), as coupling reagents. ...
The coumarin amino acids and dipeptides derivatives were prepared by the reaction of coumarin-3-carboxylic acid with amino acid methyl ester …
Spectrofluorometric determination of cinacalcet hydrochloride: greenness assessment and application to biological fluids andin-vitrodissolution testing.
Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Abo Zaid MH, et al. Methods Appl Fluoresc. 2023 Jul 26;11(4). doi: 10.1088/2050-6120/ace81b. Methods Appl Fluoresc. 2023. PMID: 37459863
Limit of detection (LOD) and limit of quantitation (LOQ) values were 1.19 and 3.62 ng ml(-1), respectively. The percentage recovery was found to be 100.42% 1.39 (n=8). The proposed method was successfully applied for determination of cinacalcet in spiked human plasma sampl …
Limit of detection (LOD) and limit of quantitation (LOQ) values were 1.19 and 3.62 ng ml(-1), respectively. The percentage recovery was foun …
Impact of pharmacist-supported transition of care services in the Middle East and North Africa: a systematic review and meta-analysis.
Alhmoud EN, Alrawi SFF, El-Enany R, Mohamed Ibrahim MI, Hadi MA. Alhmoud EN, et al. J Pharm Policy Pract. 2024 Mar 11;17(1):2323099. doi: 10.1080/20523211.2024.2323099. eCollection 2024. J Pharm Policy Pract. 2024. PMID: 38476501 Free PMC article. Review.
Narrative syntheses and meta-analysis methods were employed depending on the outcomes evaluated. RESULTS: Twelve studies (n = 2377 subjects), 10 randomised controlled trials and 2 quasi-experimental studies, were included. ...Compared to the usual care group, pharmacist-le …
Narrative syntheses and meta-analysis methods were employed depending on the outcomes evaluated. RESULTS: Twelve studies (n = 2377 su …
LC-MS/MS monitoring of the colorectal carcinoma cellular uptake and entrapment of sorafenib and its N-oxide active metabolite.
Elawady T, Al-Abd AM, Khedr A, El-Enany N, Belal F. Elawady T, et al. J Pharm Biomed Anal. 2022 May 10;213:114687. doi: 10.1016/j.jpba.2022.114687. Epub 2022 Feb 22. J Pharm Biomed Anal. 2022. PMID: 35240408
Studying such combination necessitates the development of a sensitive validated LC-MS/MS method for the determination of intra and extracellular concentration of SOR and its N-oxide metabolite (SNX) in colorectal cancer cells. SOR, SNX and the internal standard (diclofenac …
Studying such combination necessitates the development of a sensitive validated LC-MS/MS method for the determination of intra and extracell …
Highly fluorescent nitrogen-doped carbon quantum dots prepared using sucrose and urea: Green synthesis, characterization, and use for determination of torsemide in its tablets and plasma samples.
Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Abo Zaid MH, et al. Luminescence. 2024 Mar;39(3):e4710. doi: 10.1002/bio.4710. Luminescence. 2024. PMID: 38481364
The as-prepared N-CQDs were characterized using Fourier-transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM) images, and ultraviolet-visible (UV-visible) spectra. ...It was found that torsemide (TRS) caused an obvious quenching of the fluorescent …
The as-prepared N-CQDs were characterized using Fourier-transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM …
Cross-Linked Chitosan/Multi-Walled Carbon Nanotubes Composite as Ecofriendly Biocatalyst for Synthesis of Some Novel Benzil Bis-Thiazoles.
Alshabanah LA, Gomha SM, Al-Mutabagani LA, Abolibda TZ, El-Ghany NAA, El-Enany WAMA, El-Ziaty AK, Ali RS, Mohamed NA. Alshabanah LA, et al. Polymers (Basel). 2021 May 25;13(11):1728. doi: 10.3390/polym13111728. Polymers (Basel). 2021. PMID: 34070526 Free PMC article.
Aminohydrazide cross-linked chitosan (CLCS) and its MWCNTs (CLCS/MWCNTs) were formulated and utilized as a potent ecofriendly basic heterogeneous biocatalyst under ultrasonic irradiation for synthesis of two novel series of benzil bis-aryldiazenylthiazoles and benzil bis-arylhydr …
Aminohydrazide cross-linked chitosan (CLCS) and its MWCNTs (CLCS/MWCNTs) were formulated and utilized as a potent ecofriendly basic heteroge …
52 results