Discovery of novel positive allosteric modulators of the metabotropic glutamate receptor 5 (mGlu5)
作者:Jeffrey G. Varnes、Andrew P. Marcus、Russell C. Mauger、Scott R. Throner、Valerie Hoesch、Megan M. King、Xia Wang、Linda A. Sygowski、Nathan Spear、Reto Gadient、Dean G. Brown、James B. Campbell
DOI:10.1016/j.bmcl.2011.01.027
日期:2011.3
Novel in vitro mGlu(5) positive allosteric modulators with good potency, solubility, and low lipophilicity are described. Compounds were identified which did not rely on the phenylacetylene and carbonyl functionalities previously observed to be required for in vitro activity. Investigation of the allosteric binding requirements of a series of dihydroquinolinone analogs led to phenylacetylene azachromanone 4 (EC50 11.5 nM). Because of risks associated with potential metabolic and toxicological liabilities of the phenylacetylene, this moiety was successfully replaced with a phenoxymethyl group (27; EC50 156.3 nM). Derivation of a second-generation of mGlu(5) PAMs lacking a ketone carbonyl resulted in azaindoline (33), azabenzimidazole (36), and N-methyl 8-azaoxazine (39) phenylacetylenes. By scoping nitrogen substituents and phenylacetylene replacements in 39, we identified phenoxymethyl 8-azaoxazine 47 (EC50 50.1 nM) as a potent and soluble mGlu(5) PAM devoid of both undesirable phenylacetylene and carbonyl functionalities. (C) 2011 Elsevier Ltd. All rights reserved.
Chromanones: selective and reversible monoamine oxidase B inhibitors with nanomolar potency
作者:Jin-Shuai Lan、Sai-Sai Xie、Ming Huang、Ya-Jian Hu、Ling-Yi Kong、Xiao-Bing Wang
DOI:10.1039/c5md00124b
日期:——
Compound4fwas a potent and selective inhibitor for hMAO-B.
Compound 4f 是一种对 hMAO-B 具有强效和选择性抑制作用的化合物。
Design, Synthesis, and Biological Evaluation of Novel Chromanone Derivatives as Multifunctional Agents for the Treatment of Alzheimer’s Disease