Inhibition of N-acetylglucosaminyl transfer enzymes: chemical-enzymic synthesis of new five-membered acetamido azasugars
摘要:
Two new acetamido azasugars have been synthesized and tested as inhibitors of beta-N-acetylglucosaminase. Ozonolysis of enantiomerically pure N-(4-phenyl-2-azido-3-butenyl)acetamide, derived from cinnamic aldehyde, followed by lipase-catalyzed resolution of the amine intermediate 5, gave 2-azido-3-acetamidopropanal which was then condensed with dihydroxyacetone phosphate by using FDP-aldolase. The condensed product was dephosphorylated and hydrogenated to afford the five-membered acetamido azasugar analogous to N-acetylglucosamine. Compounds 1 and 2 prepared in this manner were new competitive inhibitors of a beta-N-acetylglucosaminidase with K(i) values of 1.9 and 3.6 muM, respectively, and could be useful for the synthesis of N-acetylglucosaminyltransferase inhibitors.
Iminocyclitol inhibitors of hexoaminidase and glycosidase
申请人:The Scripps Research Institute
公开号:US06774140B1
公开(公告)日:2004-08-10
Designed iminocylitols that have potent inhibition activity with respect to hexominidases and glycosides are disclosed.
披露了设计的亚氨基糖醇,它们对己糖苷酶和苷具有强大的抑制活性。
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
Combinatorial approach toward synthesis of small molecule libraries as bacterial transglycosylase inhibitors
作者:Hao-Wei Shih、Kuo-Ting Chen、Shao-Kang Chen、Chia-Ying Huang、Ting-Jen R Cheng、Che Ma、Chi-Huey Wong、Wei-Chieh Cheng
DOI:10.1039/c000622j
日期:——
iminocyclitol-based smallmoleculelibraries against a bacterial TGase is described. An iminocyclitol was conjugated with a pyrophosphate mimic using either a 1,3-dipolar cycloaddition or reductive amination reaction, which was then condensed with a variety of lipophilic carboxylic acids in an amide bond coupling to generate a desired molecularlibrary. With assistance of microtiter plate-based combinatorial chemistry
[EN] GLYCOSIDASE INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DES GLYCOSIDASES ET LEURS UTILISATIONS
申请人:ALECTOS THERAPEUTICS INC
公开号:WO2014032188A1
公开(公告)日:2014-03-06
The invention provides compounds for inhibiting glycosidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds. The invention also provides methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, accumulation or deficiency of O-GlcNAc.