A General Approach to the Synthesis of 1-Deoxy-l-iminosugars
摘要:
A stereoselective procedure for the preparation of non-naturally occurring deoxy iminosugars belonging to L-series has been developed. The synthesis involves the construction of the key intermediate bicycle pyperidine 8, available in few steps by the coupling of the heterocyclic synthon 3 and the readily available Garner aldehyde 4.
N-Butyl-l-deoxynojirimycin (l-NBDNJ): Synthesis of an Allosteric Enhancer of α-Glucosidase Activity for the Treatment of Pompe Disease
作者:Daniele D’Alonzo、Maria De Fenza、Caterina Porto、Roberta Iacono、Mylene Huebecker、Beatrice Cobucci-Ponzano、David A. Priestman、Frances Platt、Giancarlo Parenti、Marco Moracci、Giovanni Palumbo、Annalisa Guaragna
DOI:10.1021/acs.jmedchem.7b00646
日期:2017.12.14
highly stereocontrolled de novo synthesis of l-NBDNJ (the unnatural enantiomer of the iminosugar drug Miglustat) and a preliminary evaluation of its chaperoning potential are herein reported. l-NBDNJ is able to enhance lysosomal α-glucosidase levels in Pompedisease fibroblasts, either when administered singularly or when coincubated with the recombinant human α-glucosidase. In addition, differently from
De novo synthesis of noncompetitive glycosidase inhibitors L-gulo-DNJ and L-talo-DNJ has been achieved in 9-10 steps starting from Garner's aldehyde. Key to the success of this procedure was the construction of the 2,3-unsaturated piperidine 14, which syn dihydroxylation under Kishi's and Donohoe's conditions led to the desired iminosugars. (c) 2009 Elsevier Ltd. All rights reserved.