955050-02-9Relevant academic research and scientific papers
A practical and sustainable protocol for direct amidation of unactivated esters under transition-metal-free and solvent-free conditions
Chen, Cheng,Cheng, Hua,Du, Min-Chen,Qian, Liang,Qin, Xin,Sang, Wei,Yao, Wei-Zhong,Yuan, Ye,Zhang, Rui
, p. 3972 - 3982 (2021)
In this paper, a NaOtBu-mediated synthesis approach was developed for direct amidation of unactivated esters with amines under transition-metal-free and solvent-free conditions, affording a series of amides in good to excellent yields at room temperature. In particular, an environmentally friendly and practical workup procedure, which circumvents the use of organic solvents and chromatography in most cases, was disclosed. Moreover, the gram-scale production of representative products3a,3wand3auwas efficiently realized by applying operationally simple, sustainable and practical procedures. Furthermore, this approach was also applicable to the synthesis of valuable molecules such as moclobemide (a powerful antidepressant), benodanil and fenfuram (two commercial agricultural fungicides). These results demonstrate that this protocol has the potential to streamline amide synthesis in industry. Meanwhile, quantitative green metrics of all the target products were evaluated, implying that the present protocol is advantageous over the reported ones in terms of environmental friendliness and sustainability. Finally, additional experiments and computational calculations were carried out to elucidate the mechanistic insight of this transformation, and one plausible mechanism was provided on the basis of these results and the related literature reports.
Synthesis and structure–activity relationship of N-(piperidin-4-yl)benzamide derivatives as activators of hypoxia-inducible factor 1 pathways
Huang, Zhi-Ning,Liang, Han,Qiao, Hong,Wang, Bao-Rui,Qu, Ning,Li, Hua,Zhou, Run-Run,Wang, Li-Juan,Li, Shan-Hua,Li, Fu-Nan
, p. 1149 - 1161 (2018/07/21)
Guided by bioisosterism and pharmacokinetic parameters, we designed and synthesized a series of novel benzamide derivatives. Preliminary in vitro studies indicated that compounds 10b and 10j show significant inhibitory bioactivity in HepG2 cells (IC50 values of 0.12 and 0.13?μM, respectively). Compounds 10b and 10j induced the expression of HIF-1α protein and downstream target gene p21, and upregulated the expression of cleaved caspase-3 to promote tumor cells apoptosis.
Evaluation of alternative solvents in common amide coupling reactions: Replacement of dichloromethane and N,N-dimethylformamide
MacMillan, Donna S.,Murray, Jane,Sneddon, Helen F.,Jamieson, Craig,Watson, Allan J. B.
supporting information, p. 596 - 600 (2013/03/29)
A range of alternative solvents have been evaluated within amidation reactions employing common coupling reagents with a view to identifying suitable replacements for dichloromethane and N,N-dimethylformamide.
Discovery of N-{1-[3-(3-Oxo-2,3-dihydrobenzo[1,4]oxazin-4-yl)propyl] piperidin-4-yl}-2-phenylacetamide (Lu AE51090): An allosteric muscarinic M 1 receptor agonist with unprecedented selectivity and procognitive potential
Sams, Anette G.,Hentzer, Morten,Mikkelsen, Gitte K.,Larsen, Krestian,Bundgaard, Christoffer,Plath, Niels,Christoffersen, Claus T.,Bang-Andersen, Benny
supporting information; experimental part, p. 6386 - 6397 (2010/11/05)
The discovery and Structure-activity relationship (SAR) of a series of allosteric muscarinic M1 receptor agonists are described. Compound 17 (Lu AE51090) was identified as a representative compound from the series, based on its high selectivity as an agonist at the muscarinic M1 receptor across a panel of muscarinic receptor subtypes. Furthermore, 17 displayed a high degree of selectivity when tested in a broad panel of G-protein-coupled receptors, ion channels, transporters, and enzymes, and 17 showed an acceptable pharmacokinetic profile and sufficient brain exposure in rodents in order to characterize the compound in vivo. Hence, in a rodent model of learning and memory, 17 reversed delay-induced natural forgetting, suggesting a procognitive potential of 17.
