3845-16-7

Upstream product

• 4940-39-0 acide chromone carboxylique-2 
• 62-53-3 aniline 
• 5112-47-0 4-oxo-4H-chromene-2-carbonyl chloride 
• 118-93-4 o-hydroxyacetophenone 

Downstream Products

• 177610-87-6 PHCCC 

Relevant academic research and scientific papers

Synthesis and evaluation of chromone-2-carboxamide derivatives as cytotoxic agents and 5-lipoxygenase inhibitors

In the present study, we prepared a series of 21 chromone carboxamide derivatives bearing diverse amide side chains. Their potency to inhibit the proliferation of breast (MCF-7), ovarian (OVCAR and IGROV), and colon (HCT-116) cancer cell lines, was evaluated in vitro using the MTT assay. Among these compounds, 13 showed promising cytotoxic activity against at least one cancer cell line with IC50 in the range 0.9–10 μM. Our compounds were also screened for their anti-inflammatory activity as putative inhibitors of 5-lipoxygenase. Structure-activity relationships studies on our chromone carboxamide derivatives revealed that the presence of a 6-fluoro substituent on the chromone nucleus (R1) or propyl and 3-ethylphenyl groups on the amide side chain (R2) has a positive impact on the cytotoxic activity. In terms of the anti-inflammatory activity, hydrophilic chromone carboxamide derivatives showed greater 5-lipoxygenase inhibition. The physico-chemical properties of chromone carboxamides are in accordance with the general requirements of drug development process and ligand efficiency values allow further structure optimization, with compound 4b as a lead.

COMPOSITIONS AND METHODS FOR TREATING NEUROLOGICAL DISEASES OR INJURY

Provided are compounds for the treatment of neurological diseases or injuries, including neurodegenerative diseases, stroke, trauma, epilepsy, acute and chronic kidney injuries, diabetes mellitus, and/or seizures. In some embodiments, derivatives of vitamin K are provided.

Structure-activity relationship study of vitamin K derivatives yields highly potent neuroprotective agents

Historically known for its role in blood coagulation and bone formation, vitamin K (VK) has begun to emerge as an important nutrient for brain function. While VK involvement in the brain has not been fully explored, it is well-known that oxidative stress plays a critical role in neurodegenerative diseases. It was recently reported that VK protects neurons and oligodendrocytes from oxidative injury and rescues Drosophila from mitochondrial defects associated with Parkinson's disease. In this study, we take a chemical approach to define the optimal and minimum pharmacophore responsible for the neuroprotective effects of VK. In doing so, we have developed a series of potent VK analogues with favorable drug characteristics that provide full protection at nanomolar concentrations in a well-defined model of neuronal oxidative stress. Additionally, we have characterized key cellular responses and biomarkers consistent with the compounds' ability to rescue cells from oxidative stress induced cell death.

Discovery of novel A3 adenosine receptor ligands based on chromone scaffold

A project focused on the discovery of new chemical entities (NCEs) as AR ligands that incorporate a benzo-γ-pyrone [(4H)-1-benzopyran-4-one] substructure has been developed. Accordingly, two series of novel chromone carboxamides placed at positions C2 (co

In search for new chemical entities as adenosine receptor ligands: Development of agents based on benzo-γ-pyrone skeleton

A selected series of chromone carboxamides synthesized in our laboratory were evaluated by radioligand binding studies towards adenosine receptors. All the chromone-3-carboxamides (compounds 8-12) exhibit A2B receptor displacement percentage su

Accelerating lead optimization of chromone carboxamide scaffold throughout microwave-assisted organic synthesis

Microwave irradiation offers a considerable advantage over conventional synthesis with rate enhancements and cleaner reactions. Accordingly, a new microwave-assisted method for the synthesis of func-tionalized chromones was developed allowing the obtention of a library of chromone carboxamides. The method has been shown to present several advantages including operational simplicity, good performance, significant reduction in reaction time, less formation of by-products, and easier work-up.

Chromone 3-phenylcarboxamides as potent and selective MAO-B inhibitors

Monoamine oxidase (MAO) is an enzyme, present in mammals in two isoforms MAO-A and MAO-B. These isoforms have a crucial role in neurotransmitters metabolism, representing an attractive drug target in the therapy of neurodegenerative diseases (MAO-B) and d

Chromone, a privileged scaffold for the development of monoamine oxidase inhibitors

Two series of novel chromone derivatives were synthesized and investigated for their ability to inhibit the activity of monoamine oxidase. The SAR data indicate that chromone derivatives with substituents in position 3 of γ-pyrone nucleus act preferably a

CHROMONE DERIVATIVES FOR USE AS ANTIOXIDANTS/PRESERVATIVES

The current invention depicts the synthesis of new chromone amide derivatives placed at positions C2 and C3 of the chromone nucleus. The synthesised compounds possess the general formulas (I) and (II) as displayed below. This new compounds possessing different substitution patterns were obtained through a condensation reaction between 2- or 3 - carboxychromone and aniline (phenylamine) or its substituted derivatives in fairly good yields. The syntheses of the dihydroxylated compounds were performed by a demethylation reaction of the previously obtained monomethoxylated chromones. Some of these compounds possess a putative use as antioxidant/preservatives for pharmaceutical, cosmetic and/or food industries.

Benzopyrones. Part 17. The Synthesis of some Bischromones and the Reaction of Cyanomethyl Esters with Sodium Azide

Treatment of 4-oxochromen-2-carboxyl chloride with dimethylcadmium gave 1-methyl-1-(4-oxochromen-2-yl)ethyl 4-oxochromen-2-carboxylate (11) which was synthesized unequivocally and degraded to the carboxylic acid and 2-(1-methylvinyl)chromen-4-one. 2-Acetylchromen-4-one was synthesized by a new and more efficient method from 4-oxochromen-2-carbonyl chloride.The synthesis and some reactions of 4-oxochromen-2-yl isocyanate, and the cyanomethyl esters of 4-oxochromen-2-carboxylic and -2,6-dicarboxylic acids are descibed.