62772-70-7Relevant academic research and scientific papers
Research on heterocyclic compounds - Part XXXIX. 2-Methylimidazo[1,2-a]pyrimidine-3-carboxylic derivatives: Synthesis and antiinflammatory activity
Laneri, Sonia,Sacchi, Antonia,Gallitelli, Marina,Arena, Francesca,Luraschi, Elena,Abignente, Enrico,Filippelli, Walter,Rossi, Francesco
, p. 163 - 170 (1998)
The synthesis of a group of 2-methylimidazo[1,2-a]pyrimidine-3-carboxylic esters, acids and amides is described. The structures of new compounds are supported by 1H and 13C NMR spectra. These compounds were tested in vivo for their antiinflammatory analgesic and ulcerogenic activity. Eight new compounds out of fifteen showed remarkable dose-dependent antiinflammatory action in die carrageenan rat paw edema (1/2-1/3 x indomethacin) but weak analgesic activity in the acetic acid writhing test together with negligible ulcerogenic action. The new compounds were found to be lacking in inhibitory activity on cyclooxygenase in vitro.
Structural modification of zolpidem led to potent antimicrobial activity in imidazo[1,2-: A] pyridine/pyrimidine-1,2,3-triazoles
Reddyrajula, Rajkumar,Dalimba, Udaya Kumar
, p. 16281 - 16299 (2019/11/03)
Ambien (zolpidem), an imidazo[1,2-a]pyridine derivative, is a commercial drug to treat insomnia which also possesses antitubercular activity against Mycobacterium tuberculosis H37Rv. In this paper, we describe the synthesis of three diverse lead series of imidazo[1,2-a]pyridine/pyrimidine-1,2,3-triazoles (IPTs) which are designed by specific structural modifications of zolpidem. Most of the IPTs exhibited remarkable in vitro antitubercular activity with an MIC of 1.56 μg mL-1, which is two-fold higher than the MIC of zolpidem. Further, the synthesized IPTs displayed moderate inhibitory activity against several bacterial and fungal strains as well, and also showed an acceptable safety profile as verified through in vitro cytotoxicity assessment against Vero cells. In addition, the potent IPTs exhibited promising binding interactions within the active site of the InhA enzyme. An interesting correlation between the in vitro inhibitory activity and the binding mode was observed: most of the potent molecules (MIC = 1.56 μg mL-1) interact through a H-bond with the Tyr 158 residue of the target enzyme. These efforts toward the structural modification of zolpidem could be helpful for further optimization of the IPT core to develop new anti-TB drugs.
NBS mediated protocol for the synthesis of N-bridged fused heterocycles in water
Bhagat, Saket B.,Telvekar, Vikas N.
, p. 3662 - 3666 (2017/08/23)
A facile and environmental friendly protocol for the synthesis of N-bridged fused bicyclic compounds such as imidazo[1,2-a]pyridines, imidazo[1,2-a]pyrimidines, and imidazo[2,1-b]thiazole, from commercially available starting materials has been developed.
CBr4 Mediated Oxidative C-N Bond Formation: Applied in the Synthesis of Imidazo[1,2-α]pyridines and Imidazo[1,2-α]pyrimidines
Huo, Congde,Tang, Jing,Xie, Haisheng,Wang, Yajun,Dong, Jie
supporting information, p. 1016 - 1019 (2016/03/15)
The carbon tetrabromide mediated oxidative carbon-nitrogen bond formation of 2-aminopyridines or 2-aminopyrimidines with β-keto esters or 1,3-diones, leading to a variety of complex imidazo[1,2-α]pyridines or imidazo[1,2-α]pyrimidines, is reported. The re
