Results 71 to 80 of about 59,105 (258)

Development and Validation of a RP-HPLC Method for Determination of Nimodipine in Sustained Release Tablets

open access: yesJournal of Chemistry, 2013
A rapid, sensitive, and reproducible reverse phase high performance liquid chromatographic (RP-HPLC) method with UV detector for the determination of nimodipine in sustained release tablets was developed.
Xiaojun Shang, Suying Ma, Zheshen Li
doaj   +1 more source

A Modular Nucleoside Kinase Cascade for the Synthesis of Ribonucleoside Triphosphates

open access: yesBiotechnology and Bioengineering, EarlyView.
Damm et al. report standardized enzymatic cascades for production of all canonical nucleoside triphosphates from the corresponding nucleosides, using kinase‐catalyzed phosphorylation from acetyl phosphate. Reactions afforded ∼ 100 mM product in near‐quantitative conversion.
Oliver T. Damm   +3 more
wiley   +1 more source

Phenolic acids in leaves of Secamone afzelii (Rhoem.) Schult. (Asclepiadaceae)

open access: yesActa Societatis Botanicorum Poloniae, 2014
The analysis of the sets of free and liberated by hydrolysis phenolic acids in the leaves of, Secamone afzelii (Rhoem.) Schult. was conducted by 2D-TLC and RP-HPLC methods.
Renata Nowak, Sławomir Kawka
doaj   +1 more source

Stability of Mycotoxins in Individual Stock and Multi-Analyte Standard Solutions

open access: yesToxins, 2020
Standard solutions of mycotoxins prepared in RP HPLC solvents from neat standards are usually used for analytical method development. Multi-mycotoxin HPLC-MS/MS methods necessitate stability estimation for the wide spectrum of fungal metabolites.
Mariya Kiseleva   +3 more
doaj   +1 more source

Atomically precise metal cluster enzymes for pathological tissue regeneration

open access: yesBMEMat, EarlyView.
Schematic illustration of atomically precise metal cluster enzymes (MCEs) for pathological tissue regeneration. Atomically precise MCEs can modulate biological processes, such as attenuation of inflammatory responses, eradication of bacterial pathogens, regulation of angiogenesis, and promotion of cell development.
Ziqiang Xiong   +11 more
wiley   +1 more source

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

open access: yesChemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve   +4 more
wiley   +1 more source

ESTIMATION OF ONDANSETRON HYDROCHLORIDE BY RP-HPLC

open access: yesEPRA International Journal of Research & Development (IJRD), 2020
A RP-HPLC method was developed for the estimation of Ondansetron Hydrochloride in Bulk drug using high performance liquid chromatography. Ondansetron was a serotonin 5-HT3 receptor antagonist used mainly as an antiemetic drug to treat nausea and vomiting after cancer chemotherapy.
openaire   +1 more source

Phosphorescent Iridium Hydrazinonicotinic Acid (HYNIC) Complexes That Bind to Prostate Specific Membrane Antigen: Potential Photodynamic Therapy of Prostate Cancer

open access: yesChemistry – A European Journal, EarlyView.
A phosphorescent iridium(III) complex has been prepared with a 6‐hydrazinonicotinic acid (HYNIC) ligand tethered to a lysine‐ureido‐glutamatic acid pharmacophore, which binds to an enzyme, called prostate‐specific membrane antigen (PSMA), which is overexpressed in prostate cancer.
La'El Kimchi   +6 more
wiley   +1 more source

The chromatographic study of complexation of functionalized calix[4,8]arenes with aromatic aldehydes

open access: yesЖурнал органічної та фармацевтичної хімії, 2019
Aim. To study the Host-Guest complexation of octakis(diphenoxyphosphoryloxy)-tetramethylcalix[4]resorcinarene (PRA), 5,17-bis(N-tolyl-iminomethyl)-25,27-dipropoxycalix[4]arene (IC4A), 5,11,17,23-tetrakis(diisopropoxyphosphonyl)-25,26,27,28-tetra ...
O. I. Kalchenko   +2 more
doaj   +1 more source

Total Syntheses of Agelamadin F and (±)‐Tauroacidin A, Enabled by NaClO2‐Mediated Coupling Reactions of Oroidin and Amines

open access: yesChemistry – A European Journal, EarlyView.
Total syntheses of agelamadin F and (±)‐tauroacidin A were achieved by sodium chlorite (NaClO2)‐mediated oxidative C─N coupling. Nine C15–N–amino acid‐substituted oroidin derivatives were successfully prepared to demonstrate the applicability and versatility of this oxidative coupling reaction.
Ryosuke Hirozumi   +3 more
wiley   +1 more source

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