From Natural Product‐Inspired Pyrrolidine Scaffolds to the Development of New Human Golgi α‐Mannosidase II Inhibitors
作者:Ting‐Jen R. Cheng、Ting‐Hao Chan、En‐Lun Tsou、Shang‐Yu Chang、Wen‐Yi Yun、Pei‐Jung Yang、Ying‐Ta Wu、Wei‐Chieh Cheng
DOI:10.1002/asia.201300680
日期:2013.11
of sixteen naturalproduct‐inspired polyhydroylated pyrrolidine‐based isomeric scaffolds is described. Each scaffold possesses four stereogenic centers and one exo‐aminomethyl moiety, which allows for rapid substituent diversity. To exemplify biological applications, these new privileged scaffolds were used to discover newhumanGolgiα‐mannosidaseIIinhibitors. The most potent inhibitor shows competitive
Bioevaluation of sixteen ADMDP stereoisomers toward alpha-galactosidase A: Development of a new pharmacological chaperone for the treatment of Fabry disease and potential enhancement of enzyme replacement therapy efficiency
A unique molecular library consisting of all sixteen synthetic ADMDP (1-aminodeoxy-DMDP) stereo-isomers has been prepared and evaluated for inhibitory activity against alpha-Gal A, and ability to impart thermal stabilization of this enzyme. The results of this testing led us to develop a novel pharmacological chaperone for the treatment of Fabry disease. 3-Epimer ADMDP was found to be an effective pharmacological chaperone, able to rescue alpha-Gal A activity in the lymphoblast of the N215S Fabry patient derived cell line, without impairment of cellular 0-galactosidase activity. When 3-epimer ADMDP was administered with rh-alpha-Gal A (enzyme replacement therapy) for the treatment of Fabry patient-derived cell lines, improvements in the efficacy of rh-alpha-Gal A was observed, which suggests this small molecule can also provide clinical benefit of enzyme replacement therapy in Fabry disease. (C) 2016 Elsevier Masson SAS. All rights reserved.
Stereoselective Total Synthesis of Aminoiminohexitols via Carbamate Annulation
作者:Anna L. Win-Mason、Seino A. K. Jongkees、Stephen G. Withers、Peter C. Tyler、Mattie S. M. Timmer、Bridget L. Stocker
DOI:10.1021/jo201151b
日期:2011.12.2
New methodology for the preparation of a variety of aminoiminohextitols is described. Key in the synthesis is the application of a diastereoselective Strecker reaction and the extension of our carbamateannulationmethodology to protected and functionalized alkenylamines. Insight into the effects that the substitution patterns of the alkenylamines have on the diastereoselectivity of the iodocyclization