55654-71-2Relevant academic research and scientific papers
Synthesis, structure-activity relationships, and molecular modeling studies of N-(indol-3-ylglyoxylyl)benzylamine derivatives acting at the benzodiazepine receptor
Da Settimo, Antonio,Primofiore, Giampaolo,Da Settimo, Federico,Marini, Anna Maria,Novellino, Ettore,Greco, Giovanni,Martini, Claudia,Giannaccini, Gino,Lucacchini, Antonio
, p. 5083 - 5091 (1996)
A number of N-(indol-3-ylglyoxylyl)benzylamine derivatives were synthesized and tested for [3H]flunitrazepam displacing activity in bovine brain membranes. Some of these derivatives (9, 12, 14, 15, 17, 27, 34, 35, 38, 41, and 45) exhibited high affinity for the benzodiazepine receptor (BzR) with K(i) values ranging from 67 to 11 nM. The GABA ratio and [35S]-tert- butylbicyclophosphorothionate binding data, determined for the most active compounds, showed that they elicit an efficacy profile at the BzR which depends on the kind of substituent present on the phenyl ring of the benzylamine moiety. Moreover, lengthening (propylamine derivatives 1-3) and shortening (aniline derivatives 46-54) of the distance between the phenyl ring and the amide group of the side chain gave compounds with a drastically lower binding potency. The biological results are discussed in the light of a recently proposed pharmacophore model and compared, by molecular modeling studies, with those obtained from effective BzR ligands.
Novel positive allosteric modulators of A2B adenosine receptor acting as bone mineralisation promoters
Barresi, Elisabetta,Giacomelli, Chiara,Marchetti, Laura,Baglini, Emma,Salerno, Silvia,Greco, Giovanni,Da Settimo, Federico,Martini, Claudia,Trincavelli, Maria Letizia,Taliani, Sabrina
, p. 286 - 294 (2020/12/22)
Small-molecules acting as positive allosteric modulators (PAMs) of the A2B adenosine receptor (A2B AR) could potentially represent a novel therapeutic strategy for pathological conditions characterised by altered bone homeostasis, including osteoporosis. We investigated a library of compounds (4-13) exhibiting different degrees of chemical similarity with three indole derivatives (1-3), which have been recently identified by us as PAMs of the A2B AR able to promote mesenchymal stem cell differentiation and bone formation. Evaluation of mineralisation activity of 4-13 in the presence and in the absence of the agonist BAY60-6583 allowed the identification of lead compounds with therapeutic potential as anti-osteoporosis agents. Further biological characterisation of one of the most performing compounds, the benzofurane derivative 9, confirmed that such a molecule behaves as PAM of the A2B AR.
Synthesis of α-Ketoamides from β-Ketonitriles and Primary Amines: A Catalyst-Free Oxidative Decyanation–Amidation Reaction
Zhang, Ya-Kai,Wang, Bin
, p. 5732 - 5735 (2019/08/27)
AN oxidative decyanation–amidation of β-ketonitriles and primary amines readily occurs using hydrogen peroxide sodium carbonate adduct (Na2CO3·1.5H2O2), K2CO3, and 1,4-dioxane. This reactio
Copper-catalyzed oxidative cleavage of Passerini and Ugi adducts in basic medium yielding α-ketoamides
Ghoshal, Anirban,Ambule, Mayur D.,Sravanthi, Revoju,Taneja, Mohit,Srivastava, Ajay Kumar
, p. 14459 - 14474 (2019/10/01)
The aerobic oxidative cleavage of Passerini and Ugi adducts in the presence of base and copper(i) iodide is studied in detail. The oxidative cleavage yields α-ketoamides along with acids and amides from Passerini and Ugi adducts respectively. Mechanistic investigations revealed that the reaction proceeds via a radical pathway involving molecular oxygen. Control experiments with 18O-labeled Passerini adducts confirmed that molecular oxygen is the source of oxygen in α-ketoamides. A variety of Passerini and Ugi adducts were studied to explore the effect of substitution. Overall, the present study provides an insight into the reactivity of Passerini and Ugi adducts in strong basic conditions along with a method to prepare α-ketoamides.
Synthesis and evaluation of indole-based new scaffolds for antimicrobial activities - Identification of promising candidates
Singh, Palwinder,Verma, Puja,Yadav, Bhawna,Komath, Sneha S.
, p. 3367 - 3372 (2011/06/24)
Search for new antimicrobial agents led to the synthesis of series of N-1, C-3 and C-5 substituted bis-indoles. Their evaluation for antifungal and antibacterial activities resulted in the optimization of pyrrolidine/morpholine/ N-benzyl moiety at the C-3 end and propane/butane/xylidine groups as linkers between two indoles for significant inhibition of microbial growth. Preliminary investigations have identified three highly potent antimicrobial agents. Dockings of these molecules in the active sites of lanosterol demethylase, dihydrofolate reductase and topoisomerase II indicate their strong interactions with these enzymes.
Synthesis of marine alkaloid: 8,9-Dihydrocoscinamide B and its analogues as Novel class of antileishmanial agents
Gupta, Leena,Talwar, Archna,Nishi,Palne, Shraddha,Gupta, Suman,Chauhan, Prem M.S.
, p. 4075 - 4079 (2008/02/08)
A series of marine alkaloid 8,9-dihydrocoscinamide B, its analogues and indolylglyoxylamide derivatives have been synthesized and screened for their in vitro antileishmanial activity profile in promastigote and amastigote models. Compounds 7 and 10 have shown 99-100% inhibition against promastigotes and 97-98% inhibition against amastigotes at a concentration of 10 μg/ml.
