The present invention relates to the preparation and use of therapeutic compounds for the treatment of diseases at specific subcellular target areas such as specific cellular organelles. In particular, the therapeutic compounds of the invention are specific for modifying enzyme activity within targeted organelles or structures of cells and tissues. Subcellular organelles and structures that may be specifically targeted by compounds of the present invention include lysosomes, autophagasomes, the endoplasmic reticulum, the Golgi complex, peroxisomes, the nucleus, membranes and the mitochondria.
Expeditious Racemic and Enantiodivergent Synthesis of 1-Deoxymannojirimycin and 1,4-Dideoxymannojirimycin
作者:Dina Scarpi、Laura Bartali、Andrea Casini、Ernesto G. Occhiato
DOI:10.1002/ejoc.201200022
日期:2012.5
hydroboration/oxidation, for the synthesis of DMJ. Enantiodivergency was attained by optical resolution before exhaustive functional group deprotection, through the formation of diastereomeric camphanic esters. As the key racemic intermediate esters were easily prepared in a few steps on a large scale, and the final chromatographic separation of the camphanic esters was straightforward, this approach
A new, promising chiral building block 9 for the synthesis of 1-deoxy-4,5-trans-oriented azasugars such as 1-deoxynojirimycin (1) was prepared in only four steps from the Garner aldehyde 10 using catalytic ring-closing metathesis (RCM) for the construction of the piperidine ring. In practical test, the first synthesis of all four isomers (1 and 6-8) of trans-4,5-orientated 1-deoxyiminosugars using
Enantio- and Diastereoselective Syntheses of 3-Hydroxypiperidines through Iridium-Catalyzed Allylic Substitution
作者:Johannes Hoecker、Georg C. Rudolf、Florian Bächle、Steffen Fleischer、Benjamin D. Lindner、Günter Helmchen
DOI:10.1002/ejoc.201300445
日期:2013.8
Stereoselective syntheses of 3-hydroxypiperidines have been developed. Key intermediates are N-protected allylamines that are prepared by an enantioselective iridium-catalyzedallylic amination. A subsequent catch and release procedure that involves an epoxidation and base-mediated elimination yields δ-lactams that are suitably functionalized to prepare biologically active 3-hydroxypiperidines. In addition
已经开发了 3-羟基哌啶的立体选择性合成。关键中间体是通过对映选择性铱催化的烯丙胺化反应制备的 N 保护的烯丙胺。随后的捕获和释放程序涉及环氧化和碱介导的消除,产生 δ-内酰胺,其被适当地官能化以制备具有生物活性的 3-羟基哌啶。此外,还描述了该方法在脱氧甘露野尻霉素、D-赤型鞘氨醇和对药物化学感兴趣的手性构件的全合成中的应用。
An Oxidative Mannich Cyclization Methodology for the Stereocontrolled Synthesis of Highly Functionalized Piperidines
作者:Xiao-Dong Wu、Seock-Kyu Khim、Xiaoming Zhang、Ericka M. Cederstrom、Patrick S. Mariano
DOI:10.1021/jo971706n
日期:1998.2.1
promoting Mannich cyclizations was first demonstrated by the preparation of methylidenepiperidines and -hydroazepines. Further studies have led to observations which show that Mannich cyclizations of stereochemically labeled alpha-silylamino vinylsilanes proceed to furnish tetrahydropyridines. Also, unlike their amine analogues, alpha-silylamido (E)-vinylsilanes undergo cyclization to produce tetrahydropyridines