16212-40-1Relevant academic research and scientific papers
An Efficient Cyclic Di-AMP Based Artificial Metalloribozyme for Enantioselective Diels–Alder Reactions
Qi, Qianqian,Lv, Shuting,Hao, Min,Dong, Xingchen,Gu, Youkun,Wu, Peizhe,Zhang, Wenyue,Chen, Yashao,Wang, Changhao
, p. 4417 - 4424 (2020)
The diverse structures of nucleic acids as scaffolds have brought the significant advancement for DNA-based enantioselective catalysis, yet RNA-based enantioselective catalysis is lacking investigation. Herein, we report a small, natural RNA of cyclic di-AMP (c-di-AMP) and Cu2+ ions assemble into an artificial metalloribozyme (c-di-AMP·Cu2+), that could effectively catalyze the enantioselective Diels–Alder reactions with up to 80 percent ee. The enantioselective catalytic performance of c-di-AMP·Cu2+ has been studied by thorough investigations of different metal cofactors, c-di-AMP/Cu2+ molar ratios, additives, buffers and c-di-AMP analogues. In addition, the assembly of c-di-AMP·Cu2+ gives rise to 300-fold and 5-fold rate acceleration compared to the uncatalyzed reaction and Cu2+ ions, respectively. This work provides a simple and efficient strategy to construct the RNA-based catalysts that would expand the current nucleic acids-based catalysis and might hint the possible catalytic RNA in primordial chemistry.
Synthesis of azachalcones, their α-amylase, α-glucosidase inhibitory activities, kinetics, and molecular docking studies
Saleem, Faiza,Kanwal,Khan, Khalid Mohammed,Chigurupati, Sridevi,Solangi, Mehwish,Nemala, Appala Raju,Mushtaq, Maria,Ul-Haq, Zaheer,Taha, Muhammad,Perveen, Shahnaz
, (2021)
Diabetes being a chronic metabolic disorder have attracted the attention of medicinal chemists and biologists. The introduction of new and potential drug candidates for the cure and treatment of diabetes has become a major concern due to its increased pre
Nicotine receptor ligands
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, (2008/06/13)
The invention provides nicotine receptor agonists of formula I: wherein R1, x, y, and n have any of the values given in the specification, or a pharmaceutically acceptable salt thereof, as well as pharmaceutical compositions comprising such a compound or salt, methods for preparing such a compound or salt, and methods for modulating (e.g. antagonizing or activating) nicotine receptors with such a compound or salt.
2-(2-piperidyl)- and 2-(2-pyrrolidyl)chromans as nicotine agonists: Synthesis and preliminary pharmacological characterization
Efange,Tu,Von Hohenberg,Francesconi,Howell,Rampersad,Todaro,Papke,Kung
, p. 4704 - 4715 (2007/10/03)
As part of an effort to develop a new class of subtype selective nicotine agonists, we have synthesized and tested a group of 12 hydroxylated 2-(2-piperidyl)- and 2-(2-pyrrolidyl)chromans. In rat brain membranes, all 12 compounds displayed poor affinity f
