Amine-Catalyzed [3+2] Huisgen Cycloaddition Strategy for the Efficient Assembly of Highly Substituted 1,2,3-Triazoles
作者:Lei Wang、Shiyong Peng、Lee Jin Tu Danence、Yaojun Gao、Jian Wang
DOI:10.1002/chem.201103393
日期:2012.5.7
has been utilized to fully promote the Huisgen [3+2] cycloaddition with a broad spectrum of carbonyl compounds and azides, thereby permitting the efficient assembly of a vast pool of highly substituted 1,2,3‐triazoles. In particular, the employment of commonly used and commercially available carbonyl compounds has resulted in the introduction of a diverse set of functional groups, such as alkyl, aryl
In Situ “Click” Assembly of Small Molecule Matrix Metalloprotease Inhibitors Containing Zinc-Chelating Groups
作者:Mingyu Hu、Junqi Li、Shao Q. Yao
DOI:10.1021/ol802286g
日期:2008.12.18
A panel of small molecule-based MMP inhibitors containing rhodanine warheads was assembled using "one-pot" click chemistry. Upon biological screening, moderate inhibitors were identified which specifically targets MMP-7 and MMP-13 over other MMPs.
Identification of [1,2,3]Triazolo[4,5-<i>d</i>]pyrimidin-7(6<i>H</i>)-ones as Novel Inhibitors of Chikungunya Virus Replication
Chikungunya virus (CHIKV) is a re-emerging Alphavirus that is transmitted to humans by Aedes mosquitoes. Currently, there are still no drugs or vaccines available for the treatment or prevention of this disease. Although traditionally restricted to Africa and Asia, the adaptation of the virus to Aedes albopictus, a mosquito species with an almost worldwide distribution, has contributed to the geographical spread of this virus in the past decade. Here, we report on a new family of compounds named [1,2,3]triazolo[4,5-d]pyrimidin-7(6H)-ones that inhibit CHIKV replication in the low micromolar range with no toxicity to the host (Vero) cells. The most potent compound in this series has an EC50 value below 1 mu M with no cytotoxicity detected up to 668 mu M, therefore affording a selectivity index greater than 600. Interestingly, the compounds have little or no antiviral activity on the replication of other members of the Togaviridae family. The exploration and study of this class of selective inhibitors of CHIKV replication will contribute to deeper insights into the CHIKV life cycle and may be a first step toward the development of a clinical drug candidate.