5502-63-6

Upstream product

• 108-30-5 succinic acid anhydride 
• 100-01-6 4-nitro-aniline 
• 785-81-9 4-nitro-N-(phenylmethylene)benzenamine 
• 102-14-7 N-phenyl-succinamic acid 
• 144-62-7 oxalic acid 
• 110-15-6 succinic acid 

Downstream Products

• 86396-56-7 methyl 4-((4-nitrophenyl)amino)-4-oxobutanoate 
• 827582-70-7 N-(4-nitrophenyl)-4-oxo-4-(pyrrolidin-1-yl)butanamide 
• 5415-22-5 4-((4-aminophenyl)amino)-4-oxobutanoic acid 
• 35488-92-7 1-(4-nitrophenyl)pyrrolidine-2,5-dione 

Relevant academic research and scientific papers

Production, characterization, and cross-reactivity studies of monoclonal antibodies against the coccidiostat nicarbazin

A cELISA was developed for the coccidiostat nicarbazin. On the basis of previous computer-assisted molecular modeling studies, p-nitrosuccinanilic acid (PNA-S) was selected as a hapten to produce antibodies to 4,4′-dinitrocarbanilide (DNC), the active com

Identification of the subtype-selective Sirt5 inhibitor balsalazide through systematic SAR analysis and rationalization via theoretical investigations

We report here an extensive structure-activity relationship study of balsalazide, which was previously identified in a high-throughput screening as an inhibitor of Sirt5. To get a closer understanding why this compound is able to inhibit Sirt5, we initially performed docking experiments comparing the binding mode of a succinylated peptide as the natural substrate and balsalazide with Sirt5 in the presence of NAD+. Based on the evidence gathered here, we designed and synthesized 13 analogues of balsalazide, in which single functional groups were either deleted or slightly altered to investigate which of them are mandatory for high inhibitory activity. Our study confirms that balsalazide with all its given functional groups is an inhibitor of Sirt5 in the low micromolar concentration range and structural modifications presented in this study did not increase potency. While changes on the N-aroyl-β-alanine side chain eliminated potency, the introduction of a truncated salicylic acid part minimally altered potency. Calculations of the associated reaction paths showed that the inhibition potency is very likely dominated by the stability of the inhibitor-enzyme complex and not the type of inhibition (covalent vs. non-covalent). Further in-vitro characterization in a trypsin coupled assay determined that the tested inhibitors showed no competition towards NAD+ or the synthetic substrate analogue ZKsA. In addition, investigations for subtype selectivity revealed that balsalazide is a subtype-selective Sirt5 inhibitor, and our initial SAR and docking studies pave the way for further optimization.

Radical-mediated dehydrative preparation of cyclic imides using (NH4)2S2O8-DMSO: Application to the synthesis of vernakalant

Ammonium persulfate-dimethyl sulfoxide (APS-DMSO) has been developed as an efficient and new dehydrating reagent for a convenient one-pot process for the synthesis of miscellaneous cyclic imides in high yields starting from readily available primary amines and cyclic anhydrides. A plausible radical mechanism involving DMSO has been proposed. The application of this facile one-pot imide forming process has been demonstrated for a practical synthesis of vernakalant.

Synthesis and characterization of tributyltin derivatives from 4-oxo-4-(arylamino)butanoic acids and their in vitro biological activity against cervical cancer cell lines

Uterine (cervix and corpus) cancer is one of the major causes ofmortality in women inMexico. Organotin carboxylated derivatives have shown high cytotoxic activity against various cell lines of human origin. We describe the synthesis of three new tri-n-but

Synthesis and characterization of tributyltin derivatives from 4-oxo-4-(arylamino)butanoic acids and their in vitro biological activity against cervical cancer cell lines

Uterine (cervix and corpus) cancer is one of the major causes of mortality in women in Mexico. Organotin carboxylated derivatives have shown high cytotoxic activity against various cell lines of human origin. We describe the synthesis of three new tri-n-b

Design, synthesis and evaluation of 4,5-di-substituted acridone ligands with high G-quadruplex affinity and selectivity, together with low toxicity to normal cells

A series of 4,5-di-substituted acridones have been designed and synthesized. Several compounds show high affinity for telomeric G-quadruplex DNA in classical and competition FRET assays, together with low duplex DNA affinity, although they do not show activity in a telomerase assay or evidence of telomere shortening. They have low toxicity against a panel of cancer cell lines and a normal human fibroblast line, and produce potent senescence-based long-term growth arrest in the MCF7 and A549 cancer cell lines.

Substituent chemical shifts of N-arylsuccinanilic acids, N-arylsuccinimides, N-arylmaleanilic acids, and N-arylmaleimides

NMR spectra of a series of N-arylsuccinanilic acids, N-arylsuccinimides, N-arylmaleanilic acids, and N-arylmaleimides were examined to estimate the electronic effect of the amide and imide groups on the chemical shifts of the hydrogen and carbon nuclei of the benzene ring.

Docking and quantum mechanic studies on cholinesterases and their inhibitors

Docking studies and density functional theory (DFT) calculations were made for 88 N-aryl derivatives and for some acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) residues. Based on this information, some compounds were synthesized and tested

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.