2044-66-8

Upstream product

• 674-82-8 4-methyleneoxetan-2-one 
• 64-04-0 phenethylamine 
• 1694-31-1 tert-butyl acetoacetate 
• 5394-63-8 2,2,6-trimethyl-4H-1,3-dioxin-4-one 
• 85920-63-4 5-(1-hydroxyethylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione 

Downstream Products

• 404570-09-8 2-acetyl-3-(3,4-dichlorophenyl)-N-(2-phenylethyl)-acrylamide 
• 1228550-78-4 3,7-dimethyl-1,4-di-N-oxidequinoxaline-2-carboxylic acid 2-phenylethylamide 
• 1227077-58-8 2-(2-furanyl)-6-methyl-3-(2-phenylethyl)-3H-pyrimidin-4-one 
• 1227077-59-9 6-methyl-3-(2-phenylethyl)-2-(2-thienyl)-3H-pyrimidin-4-one 
• 1227077-57-7 6-methyl-3-(2-phenylethyl)-2-(2-pyrazinyl)-3H-pyrimidin-4-one 
• 1227077-53-3 6-methyl-2-(1-methylethyl)-3-(2-phenylethyl)-3H-pyrimidin-4-one 
• 1227077-56-6 6-methyl-3-(2-phenylethyl)-2-(4-pyridinyl)-3H-pyrimidin-4-one 
• 1227077-54-4 2-cyclohexyl-6-methyl-3-(2-phenylethyl)-3H-pyrimidin-4-one 
• 1227077-55-5 6-methyl-3-(2-phenylethyl)-2-(phenylmethyl)-3H-pyrimidin-4-one 
• 1227077-52-2 2-ethyl-6-methyl-3-(2-phenylethyl)-3H-pyrimidin-4-one 
• 938180-01-9 2-(3-fluoro-2-hydroxyphenyl)-6-methyl-5-(5-methyl-2-thienyl)-3-(2-phenylethyl)-4(3H)-pyrimidinone 
• 938180-21-3 2-{3-fluoro-2-[(phenylmethyl)oxy]phenyl}-6-methyl-3-(2-phenylethyl)-4(3H)-pyrimidinone 
• 1228550-81-9 7-chloro-1,4-di-N-oxide-3-methylquinoxaline-2-carboxylic acid 2-phenylethylamide 
• 1228550-82-0 6,7-dichloro-1,4-di-N-oxide-3-methylquinoxaline-2-carboxylic acid 2-phenylethylamide 

Relevant academic research and scientific papers

Overcoming the Pregnane X Receptor Liability: Rational Design to Eliminate PXR-Mediated CYP Induction

The pregnane X receptor (PXR) regulates expression of proteins responsible for all three phases required for the detoxification mechanism, which include CYP450 enzymes, phase II enzymes, and multidrug efflux pumps. Therefore, PXR is a prominent receptor t

CYCLIC DIARYLBORON DERIVATIVES AS NLRP3 INFLAMMASOME INHIBITORS

Inhibitor compounds are disclosed. The compounds are effective in the treatment of diseases or conditions in which interleukin 1 β activity is implicated. Methods of synthesis of the compounds, as well as pharmaceutical compositions comprising the compounds are also disclosed.

Studies on log Po/w of quinoxaline di-N-oxides: A comparison of RP-HPLC experimental and predictive approaches

As reported in our previous papers, a series of quinoxaline-2-carboxamide 1,4-di-N-oxide derivatives were synthesized and studied as anti-tuberculosis agents. Here, the capability of the shake-flask method was studied and the retention time (expressed as log K) of 20 compounds were determined by RP-HPLC analysis. We found that the prediction of log P by the RP-HPLC analysis can result in a high accuracy and can replace the shake-flask method avoiding the experimental problems presented by quinoxaline di-N-oxides. The studied compounds were subjected to the ALOGPS module with the aim of comparing experimental log Po/w values and predicted data. Moreover, a preliminary in silico screening of the QSAR relationship was made confirming the influence of reduction peak potential, lipophilicity, H-bond donor capacity and molecular dimension descriptors on anti-tuberculosis activity.

Titanium(IV) isopropoxide mediated synthesis of pyrimidin-4-ones

A novel, one-step method for the synthesis of tri- and tetrasubstituted pyrimidin-4-ones is reported. This method involves a titanium(IV)-mediated cyclization involving two sequential condensations of primary and β-ketoamides. The reaction is operationally facile, readily scalable, and offers rapid entry into differentially substituted pyrimidin-4-one scaffolds. The high functional group compatibility allows for substantial diversification in the products generated from this transformation.

New 3-methylquinoxaline-2-carboxamide 1,4-di-N-oxide derivatives as anti-Mycobacterium tuberculosis agents

Mycobacterium tuberculosis (M.Tb) is a bacillus capable of causing a chronic and fatal condition in humans known as tuberculosis (TB). It is estimated that there are 8 million new cases of TB per year and 3.1 million infected people die annually. Thirty-six new amide quinoxaline 1,4-di-N-oxide derivatives have been synthesized and evaluated as potential anti-tubercular agents, obtaining biological values similar to the reference compound, Rifampin (RIF).

Dihydropyrazolopyrimidine Inhibitors of KV1.5 (IKur)

A series of dihydropyrazolopyrimidine inhibitors of KV1.5 (IKur) have been identified. The synthesis, structure-activity relationships and selectivity against several other ion channels are described.

CALCILYTIC COMPOUNDS

Novel calcilytic compounds, pharmaceutical compositions, methods of synthesis and methods of using them are provided.

An efficient and rapid synthesis of β-carboxamide derivatives using 2,2-dimethyl-2H,4H-1,3-dioxin-4-ones by microwave irradiation

A general, efficient and rapid method for the synthesis of various β-carboxamide derivatives using microwave irradiation is described. Excellent isolated yields were obtained in very short reaction times when conventional heating was replaced by microwave irradiation.

Microwave-assisted solution-phase synthesis of 1,4,5-trisubstituted pyrazoles

A small parallel library of 1,4,5-trisubstituted pyrazoles was prepared in solution using a three-step procedure starting from Meldrum acid. The Meldrum acid was acylated with different acyl chlorides and the products opened with different alcohols and amines to give substituted β-keto esters and β-keto amines. Further reaction with N,N-dimethylformamide dimethylacetal and the final cyclisation were effectively carried out under microwave irradiation. Scavenger resins were employed exclusively in the first step, whereas use of microwaves allowed complete conversion of the starting materials in the other two steps. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.

SYNTHESIS AND SPECTROSCOPIC STUDIES ON SOME NEW SUBSTITUTED 2-QUINOXALINECARBOXAMIDES AND THEIR N-OXIDES

Series of new 2-(N-phenylcarbamoyl)-3-methylquinoxaline 1,4-dioxides (I), monoxides (II,III) and their non-oxygenated analogues (IV), as well as the corresponding series lacking the C3-methyl (V-VIII) have been prepared, and their 1H-nmr spectr