14960-37-3Relevant academic research and scientific papers
Synthesis of novel benzimidazoles and benzothiazoles via furan-2-carboxaldehydes, o-phenylenediamines, and 2-aminothiophenol using Cu(II) Schiff-base@SiO2 as a nanocatalyst
Sharghi, Hashem,Mashhadi, Elahe,Aberi, Mahdi,Aboonajmi, Jasem
, (2021/06/25)
2-(5-Substituted phenyl)furan-2-carboxaldehyde derivatives were prepared by using an efficient copper(II) complex of tetradentate Schiff-base ligand immobilized onto silica as a heterogeneous nanocatalyst [Cu(II) Schiff-base@SiO2] (5.0?mol%) using anilines, sodium nitrite, and furan-2-carboxaldehyde. Furthermore, attractive di-heteroaryl benzo-fused systems such as benzimidazole and benzothiazole derivatives were synthesized using this nanocatalyst (5.0?mol%) via the reaction of o-phenylenediamines and 2-aminothiophenol with 2-(5-substituted phenyl)furan-2-carboxaldehydes in EtOH. The catalyst was characterized by Fourier transform infrared (FT-IR), field emission scanning electron microscope (FESEM), energy-dispersive X-ray spectroscopy (EDX), X-ray powder diffraction (XRD), and inductively coupled plasma (ICP) techniques. The advantages of the present catalytic system are short reaction times, mild conditions, good to excellent yields, and low amount of nanocatalyst. Moreover, to the best of our knowledge, this is the first time of using the same catalyst in two steps including synthesis of 2-(5-substituted phenyl)furan-2-carboxaldehyde and benzimidazole or benzothiazole derivatives. In addition, the synthesized catalyst was recycled very well and reused several times without significant loss of its catalytic activity.
Discovery of a novel series of potent MK2 non-ATP competitive inhibitors using 1,2-substituted azoles as cis-amide isosteres
Xiao, Dong,Zhu, Xiaohong,Sofolarides, Michael,Degrado, Sylvia,Shao, Ning,Rao, Ashwin,Chen, Xiao,Aslanian, Robert,Fossetta, James,Tian, Fang,Trivedi, Prashant,Lundell, Daniel,Palani, Anandan
, p. 3609 - 3613 (2014/07/22)
A unified strategy was conceived and implemented to deliver conformationally constrained anilides based on their preferred cis-amide conformers. The imidazole/triazole mimicing amide bonds were designed, building upon an earlier discovery of a novel series of tricyclic lactams MK2 kinase inhibitors. This approach enabled rapid, modular synthesis of structurally novel analogs. The efficient SAR development led to the discovery of low molecular weight and potent MK2 non-ATP competitive inhibitors with good ligand efficiency, which led to improved permeability and oral exposure in rats.
