37642-93-6

Upstream product

• 110-15-6 succinic acid 
• 134-32-7 1-amino-naphthalene 
• 69971-89-7 N-(naphthalen-1-yl)pyrrolidine-2,5-dione 
• 108-30-5 succinic acid anhydride 

Downstream Products

• 1252687-38-9 4-(1-naphthylamino)-4-oxobutanoic acid N-hydroxysuccinimide ester 
• 64407-57-4 N,N-dicyclohexylurea 
• 1350717-72-4 N-(5-chloro-2-methyl-phenyl)-N'-(naphthalen-1-yl)oxalamide 
• 1332878-10-0 N-(naphthalen-1-yl)-N'-o-tolyloxalamide 
• 1332878-13-3 N-(naphthalen-1-yl-)N'-m-tolyloxalamide 
• 1332878-11-1 N-(2-methoxyphenyl)-N'-(naphthalen-1-yl)oxalamide 
• 1332878-12-2 N-(2-methoxy-4-methylphenyl)-N'-(naphthalen-1-yl)oxalamide 

Relevant academic research and scientific papers

A new naphthalene derivative with anti-amyloidogenic activity as potential therapeutic agent for Alzheimer's disease

The aggregation of β-amyloid peptides is associated to neurodegeneration in Alzheimer's disease (AD) patients. Consequently, the inhibition of both oligomerization and fibrillation of β-amyloid peptides is considered a plausible therapeutic approach for AD. Herein, the synthesis of new naphthalene derivatives and their evaluation as anti-β-amyloidogenic agents are presented. Molecular dynamic simulations predicted the formation of thermodynamically stable complexes between the compounds, the Aβ1-42 peptide and fibrils. In human microglia cells, these compounds inhibited the aggregation of Aβ1-42 peptide. The lead compound 8 showed a high affinity to amyloid plaques in mice brain ex vivo assays and an adequate log Poct/PBS value. Compound 8 also improved the cognitive function and decreased hippocampal β-amyloid burden in the brain of 3xTg-AD female mice. Altogether, our results suggest that 8 could be a novel therapeutic agent for AD.

Design, synthesis and anticancer activity of naphthoquinone derivatives

Basis on molecular docking and pharmacophore analysis of naphthoquinone moiety, a total of 23 compounds were designed and synthesised. With the help of reverse targets searching, anti-cancer activity was preliminarily evaluated, most of them are effective against some tumour cells, especially compound 12: 1-(5,8-dihydroxy-1,4-dioxo-1,4-dihydronaphthalen-2-yl)-4-methylpent-3-en-1-yl-4-oxo-4-((4-phenoxyphenyl)amino) butanoate whose IC50 against SGC-7901 was 4.1 ± 2.6 μM. Meanwhile the anticancer mechanism of compound 12 had been investigated by AnnexinV/PI staining, immunofluorescence, Western blot assay and molecular docking. The results indicated that this compound might induce cell apoptosis and cell autophagy through regulating the PI3K signal pathway.

Synthesis and binding study of certain 6-arylalkanamides as molecular probes for cannabinoid receptor subtypes

Tetrahydrocannabinol and other mixed cannabinoid (CB) receptors CB1/CB2 receptor agonists are well established to elicit antinociceptive effects and psychomimetic actions, however, their potential for abuse have dampened enthusiasm f

Synthesis and binding study of certain 6-arylalkanamides as molecular probes for cannabinoid receptor subtypes

Tetrahydrocannabinol and other mixed cannabinoid (CB) receptors CB1/CB2 receptor agonists are well established to elicit antinociceptive effects and psychomimetic actions, however, their potential for abuse have dampened enthusiasm for their therapeutic d

METHOD FOR OBTAINING NOVEL DERIVATIVES OF NAPHTALENE FOR THE IN VIVO DIAGNOSIS OF ALZHEIMER 'S DISEASE

This invention relates to a chemistry branch, particularly to the field of compounds' organic synthesis that belongs to the aromatic bicyclic or naphthalene category, used in the detection of amyloid sheets. These new naphthalene derivatives have a general formula: Where R represents mutually independent groups. In I: R1: -alkylenyl-C(O)NH-alkylenyl-R3, -alkylenyl-C(O)O-R4; R3: -COOH, -OH, - SH, -NH2, -alkyl-NH, -alkyl-N-dithiocarbamate alkaline earth metal salts. R4: succinimidyl group. R2: -H, -alkyl. The term "alkyl" is characterized by a linear or branched aliphatic chain, hydrogen and saturated carbon atoms, comprising a methyl, ethyl, n-propyl, iso-propyl, n-butyl or iso-butyl groups. The term "alkylenyl" refers to a divalent analog of a linear or branched alkyl group, preferably ethylenyl (CH2CH2) or butylenyl (CH2CH2CH2CH2) radicals. In II: R1: -alkyl, and R2 is -alkylenyl-O-arylsulfonate, -alkylenyl-halide, -CH(O), alkylenyl-NH2, -alkylenyl-NH-alkyl, -alkylenyl-alkyl-N-dithiocarbamate salts such as cesium, potassium or sodium. The term "alkyl" is characterized by a linear or branched aliphatic chain, hydrogen and saturated carbon atoms, preferably methyl, ethyl, n-propyl, iso-propyl, n-butyl or iso-butyl. The term "alkylenyl" refers to a divalent analog of a linear or branched alkyl group, preferably propylenyl (-CH2CH2 CH2) radical. The term halide refers to fluorine, bromine or iodine. or, In II: R1: -alkylenyl-halide, -alkylenyl-O-arylsulfonate and R2: -halide, -alkylenyl-O-arylsulfonate, -alkylenyl-O-alkylsulfonate, -alkylenyl-halide, -CH(O), -HC=C(CN)2, - HC=CHNO2, -alkylenyl-NH2, -alkylenyl-NH-alkyl, -alkylenyl-alkyl-N-dithiocarbamate salts such as cesium, potassium or sodium. The term "alkylenyl" refers to a divalent analog of a linear or branched alkyl group, preferably propylenyl (-CH2CH2 CH2) radical. The term halide refers to fluorine, bromine or iodine. These compounds are neutral, lipophilic and have low molecular weight and therefore they cross the blood brain barrier and attach to the amyloid sheets. The present invention provides procedures for obtaining naphthalene derivatives with good yields, which can be practical, economical and adapted to a larger-scale manufacturing. We are unaware whether the compounds presented in this invention have been previously reported.

Method for Obtaining Novel Derivatives of Naphthalene for the In Vivo Diagnosis of Alzheimer's Disease

This invention relates to a chemistry branch, particularly to the field of compounds' organic synthesis that belongs to the aromatic bicyclic or naphthalene category, used in the detection of amyloid sheets. These new naphthalene derivatives have a general formula: Wherein R represents mutually independent groups. In I: R1:-alkylenyl-C(O)NH-alkylenyl-R3, -alkylenyl-C(O)O—R4, R3:—COOH, —OH, —SH, —NH2, -alkyl-NH-alkyl-N-dithiocarbamate alkaline earth metal salts, R4: H, succinimidyl group, R2: —H,-alkyl. In II: R1: -alkyl, -alkylenyl-halide-alkylenyl-hydroxyl-alkylenyl-O-aryl, —O-alkylsulfonate alkylenyl, R2: -halide-alkylenyl-O-aryl, -alkylenyl-O-alkylsulfonate, -alkylenyl-halide-, —CH(O), —HC═C(CN)2, —HC═CHNO2, -alkylenyl-NH2, -alkylenyl-NH-alkyl, -alkylenyl-alkyl-N-dithiocarbamate alkaline salts. The terms “alkyl” and “alkylenyl” refer to linear or branched aliphatic chains, preferably from 1 to 4 carbon atoms and the term halide to fluorine, bromine or iodine. These compounds are neutral, lipophilic and have low molecular weight and therefore they cross the blood brain barrier and attach to the amyloid sheets. The present invention provides procedures for obtaining naphthalene derivatives with good yields, which can be practical, economical and adapted to a larger-scale manufacturing. We are unaware whether the compounds presented in this invention have been previously reported.

Ligand-based modelling followed by synthetic exploration unveil novel glycogen phosphorylase inhibitory leads

Glycogen phosphorylase (GP) is a valid anti-diabetic target. Accordingly, we applied a drug discovery workflow to unveil novel inhibitory GP leads via combining pharmacophore modeling, QSAR analysis and in silico screening, followed by synthetic exploration of active hits. Virtual screening identified six low micromolar inhibitory leads from the National Cancer Institute (NCI) list of compounds. The most potent hits exhibited anti-GP IC50 values of 3.2 and 4.1 μM. Synthetic exploration of hit 59 (IC50 = 4.1 μM) yielded 25 lead inhibitors with the best illustrating IC50 of 3.0 μM. Interestingly, we prepared several novel mixed oxalyl amide anti-GP leads employing new chemical reaction involving succinic acid-based adducts.

Studies on the synthesis and crystal structure of N-(1-naphthyl)succinimide

A modified two-step procedure for synthesis of N-(1-naphthyl)succinimide (NaS) was developed, and its single crystal was prepared for the first time. The molecular and crystal structures were characterized by XRD, FT-IR, 1H NMR, DSC, etc. It has been found that the melting point (159-160.5°C) of our product is ca 10°C higher than the documented values, while the characteristic infrared absorption band of carbonyl group splits into two peaks (1705cm-1 /1779cm-1) rather than one as reported in the references. These discrepancies were further examined by X-ray crystallographic analysis. Meanwhile, photophysical spectroscopy was found to be powerful to study the molecular structure and crystal morphology of organic compound.

Reactions of cyclic anhydrides with aromatic primary amines: Part 3 - Synthesis of novel 3-(N-arylcarbamoyl)- and 3-(N-naphthylcarbamoyl)carboxylic acids

Some hitherto unreported 3-(N-arylcarbamoyl)propenoic acids 7a-h and 3-(N-naphthylcarbamoyl)propenoic acid 9 have been synthesized in excellent yields, together with some propanoic acid analogues 11a-h and 12 as potential pesticides. Structural assignments of the products are based on elemental analyses and spectral (IR, 1H NMR, mass) data.

Synthesis and 1H NMR Spectra of Some 1-Aryl-2,5-pyrrolidinediones

Three 1-aryl-2,5-pyrrolidinediones, two of which are novel, were prepared by reaction of the requisite primary aromatic amines with succinic anhydride, followed by treatment with acetic anhydride.The 1H nmr spectra for the derivatives in which aryl is 1-naphthyl and 1-anthracenyl exhibit 32-line multiplets for the four aliphatic hydrogens, indicating that all four are in different environments.Examination of molecular models demonstrates that the pyrrolidinedione and aryl ring systems cannot be coplanar and that rotation about the nitrogen-aryl bond is restircted.Molecul ar mechanics calculations reveal that a dihedral angle 50-65 deg for the two ring systems results in the minimum steric interaction energy.