39635-18-2

Upstream product

• 70656-95-0 chlorure de 2,3-dioxosulfinylbenzoyle 
• 2411-83-8 methyl-2,3-dihydroxybenzoate 
• 303-38-8 2,3-Dihydroxybenzoic acid 

Downstream Products

• 1003849-94-2 2,3-dihydroxybenzoic acid 2-(2,3-dihydroxybenzoyl)hydrazide 
• 1003850-07-4 2,3-dihydroxybenzoic acid [(2,3-dihydroxyphenyl)methylene]hydrazide 
• 1380230-39-6 C₄₂H₃₃N₇O₉ 
• 1380230-40-9 C₄₈H₃₆N₆O₉ 

Relevant academic research and scientific papers

Green synthesis of benzamide-dioxoisoindoline derivatives and assessment of their radical scavenging activity – Experimental and theoretical approach

A series of benzamide-dioxoisoindoline derivatives 3 was obtained, starting from phthalic anhydride and different benzoyl hydrazides 2, by ultrasound irradiation in water as solvent and without any catalyst. Five obtained compounds have been reported in this study for the first time and crystal structure of compound 3h was determined. All compounds were subjected to experimental determination of their antioxidative potential. DPPH test revealed that newly synthesized phenolic compounds 3d, 3e, and 3j are the best antioxidants. Additionally, probable radical scavenging pathway was analysed for reactions of the most active compounds and some radicals that can be found in living cells.

Synthesis and antioxidant activity of 1,3,4-oxadiazoles and their diacylhydrazine precursors derived from phenolic acids

Eight 1,3,4-oxadiazole derivatives containing phenolic acid moieties (7a-h) and eight of their diacylhydrazine precursors (6a-h) were synthesized, characterized using spectroscopic methods and examined by scavenging of stable DPPH (2,2-diphenyl-1-picrylhydrazyl) radicals. The most potent phenolic 1,3,4-oxadiazoles showed better DPPH scavenging activity in comparison with their corresponding diacylhydrazine precursors as a result of participation of both aromatic rings and a 1,3,4-oxadiazole moiety in resonance stabilization of the formed phenoxyl radical. Four diacylhydrazines (6d, 6e, 6g, and 6h) and four 1,3,4-oxadiazoles (7d, 7e, 7g and 7h) with the best DPPH scavenging activity, were chosen for further evaluation of their antioxidant potential through various assays. The investigated compounds exerted pronounced ABTS radical scavenging capacity, moderate to good H2O2 scavenging properties and strong ferric ion reducing capacity. Further in vitro evaluation of the antioxidant properties of the most active compounds demonstrated their protective effects in normal lung fibroblasts MRC-5 against hydrogen peroxide induced oxidative stress. Diacylhydrazine 6h increased two times the activity of glutathione peroxidase in treated cells in comparison with a control sample and did not affect the superoxide dismutase activity.

Supramolecular [M4L4] tetrahedra based on triangular acylhydrazone catechol ligands

The ligands 1-H6 and 2-H6 are prepared by condensation of the triangular triamines 5 and 2,3-dihydroxybenzoic acid hydrazide 7. The ligands form container-type tetrahedral coordination compounds Mx [(1 or 2)4M′

HYDRAZIDE, AMIDE, PHTHALIMIDE AND PHTHALHYDRAZIDE ANALOGS AS INHIBITORS OF RETROVIRAL INTEGRASE

The present invention provides catechol-containing hydrazides, amides, phthalimide and phthalhydrazide analogs. These compounds are inhibitors of retroviral integrase, an essential enzyme for the proliferation of retroviruses such as HIV-1. Also provided are pharmaceutical compositions comprising at least one of the catechol-containing hydrazides, amides, phthalimide or phthalhydrazide analogs and a method of using the hydrazide, amide, phthalimide and phthalhydrazide analogs to inhibit retroviral proliferation and as therapeutics for the treatment of AIDS.

2,3-Dihydro-6,7-dihydroxy-1H-isoindol-1-one-based HIV-1 integrase inhibitors

The bis-salicylhydrazides class of HIV-1 integrase (IN) inhibitors has been postulated to function by metal chelation. However, members of this series exhibit potent inhibition only when Mn2+ is used as cofactor. The current study found that bis-aroylhydrazides could acquire inhibitory potency in Mg2+ using dihydroxybenzoyl substituents as both the right and left components of the hydrazide moiety. Employing a 2,3-dihydro-6,7-dihydroxy-1H- isoindol-1-one ring system as a conformationally constrained 2,3-dihydroxybenzoyl equivalent provided good selectivity for IN-catalyzed strand transfer versus the 3′-processing reactions as well as antiviral efficacy in cells using HIV-1 based vectors.