949035-36-3Relevant academic research and scientific papers
Rapid access to 3-acyl indoles using ethyl acetate/triflic acid couple as the acylium donor and Cu(OAc)2catalysed aerial oxidation of indole benzoins
Talukdar, Ranadeep
supporting information, p. 8876 - 8880 (2020/11/23)
Esters are potential acyl donors but are relatively unexplored for that purpose. A facile installation of acyl groups at the C-3 position of indoles under triflic acid catalysed conditions with easily available and cheap esters as new acylating agents is described herein. Furthermore, heterocycles like N-protected pyrrole, furan and thiophene were also suitable substrates for similar C-2 acylation. Analogous C-3 benzoylated products of indole were obtained, albeit in lower yields, by using methyl benzoate as a benzoyl donor. The benzoylated products were synthesised in much better yields via a copper(ii) catalysed aerial oxidation of indole containing benzoins. This journal is
Rhodium(III)-catalyzed C4-amidation of indole-oximes with dioxazolones: Via C-H activation
Deng, Ke-Zuan,Fu, Xiao-Pan,Ji, Ya-Fei,Tang, Shi-Biao,Wu, Gao-Rong,Xia, Cheng-Cai,Yang, Jin-Yue,Zhang, Li-Li
, p. 7922 - 7931 (2020/11/02)
A novel method for the Rh(III)-catalyzed oxime-directed C-H amidation of indoles with dioxazolones has been developed. This strategy provides an exclusive site selectivity and the directing group can be easily removed. This transformation features a wide substrate scope, good functional group tolerance and excellent yields, and may serve as a significant tool to construct structurally diverse indole derivatives for the screening of potential pharmaceuticals in the future. This journal is
Exploring Heteroaryl-pyrazole Carboxylic Acids as Human Carbonic Anhydrase XII Inhibitors
Cadoni, Roberta,Pala, Nicolino,Lomelino, Carrie,Mahon, Brian P.,McKenna, Robert,Dallocchio, Roberto,Dessì, Alessandro,Carcelli, Mauro,Rogolino, Dominga,Sanna, Vanna,Rassu, Mauro,Iaccarino, Ciro,Vullo, Daniela,Supuran, Claudiu T.,Sechi, Mario
supporting information, p. 941 - 946 (2017/09/22)
We report the synthesis, biological evaluation, and structural study of a series of substituted heteroaryl-pyrazole carboxylic acid derivatives. These compounds have been developed as inhibitors of specific isoforms of carbonic anhydrase (CA), with potential as prototypes of a new class of chemotherapeutics. Both X-ray crystallography and computational modeling provide insights into the CA inhibition mechanism. Results indicate that this chemotype produces an indirect interference with the zinc ion, thus behaving differently from other related nonclassical inhibitors. Among the tested compounds, 2c with Ki = 0.21 μM toward hCA XII demonstrated significant antiproliferative activity against hypoxic tumor cell lines. Taken together, the results thus provide the basis of structural determinants for the development of novel anticancer agents.
Dual Inhibition of Mnk2 and FLT3 for potential treatment of acute myeloid leukaemia
Diab, Sarah,Abdelaziz, Ahmad M.,Li, Peng,Teo, Theodosia,Basnet, Sunita K.C.,Noll, Ben,Rahaman, Muhammed H.,Lu, Jingfeng,Hou, Jinqiang,Yu, Mingfeng,Le, Bich T.,Albrecht, Hugo,Milne, Robert W.,Wang, Shudong
supporting information, p. 762 - 772 (2017/09/02)
The discovery of novel anti-AML therapeutic agents is urgently needed, but the complex heterogeneity of the disease has so far hampered the development of a curative treatment. FLT3 inhibitors have shown therapeutic potential in clinical trials; but a monotherapy regimen has been associated with resistance mediated by the activation of parallel signalling circuitry, including MAPK and mTOR. Therefore, inhibiting a nexus of the two signalling pathways along with inhibition of FLT3 might be advantageous. Herein, we propose that a dual inhibition of FLT3 and Mnk would provide a better clinical option for AML patients compared to targeting FLT3 alone. Thus, a series of N-phenyl-4-(thiazol-5-yl)pyrimidin-2-amines and 4-(indol-3-yl)-N-phenylpyrimidin-2-amines were prepared. Potent Mnk2 inhibitors, FLT3 inhibitors, and dual inhibitors of Mnk2 and FLT3 were identified and their anti-proliferative activities assessed against MV4-11 AML cell lines. Dual inhibition of FLT3 and Mnk2 caused the increased apoptotic cell death of MV4-11 cells compared to inhibition of FLT3 or Mnk2 alone.
One-pot desulfonylative alkylation of N-sulfonyl azacycles using alkoxides generated by phase-transfer catalysis
Denton, Justin R.
experimental part, p. 775 - 782 (2010/09/11)
Sulfonamide heterocycles, specifically 3-acylindoles, undergo a deprotection/alkylation sequence in the presence of an appropriate alcohol when cesium carbonate or potassium carbonate and a phase-transfer catalyst are utilized. The outcome of the one-pot protocol was found to be significantly dependent on both the alcohol and sulfonamide heterocycle employed. Strictly anhydrous conditions are not necessary for this protocol. Georg Thieme Verlag Stuttgart · New York.
Towards the syntheses of N-H and N-alkylated derivatives of meridianins
Simon, Ga?lle,Couthon-Gourves, Hélène,Haelters, Jean-Pierre,Corbel, Bernard,Kervarec, Nelly,Michaud, Fran?ois,Meijer, Laurent
, p. 793 - 801 (2008/03/29)
(Chemical Equation Presented) Novel N-H and N-alkylated derivatives of meridianins have been synthesized as potential antitumor agents by a two-step conversion of N-tosyl-3-acetylindoles or N-alkyl-3-acetylindoles to the corresponding enaminones using DMF-DMA, with or without added pyrrolidine. Further cyclization with guanidine gave the corresponding 2-aminopyrimidines. The structures of the compounds, thus obtained, were proved by 1H and 13C NMR spectroscopy, NOE experiments and X-ray analysis.
