528593-83-1Relevant articles and documents
N-Alkyl-1,5-dideoxy-1,5-imino-L-fucitols as fucosidase inhibitors: Synthesis, molecular modelling and activity against cancer cell lines
Zhou, Jian,Negi, Arvind,Mirallai, Styliana I.,Warta, Rolf,Herold-Mende, Christel,Carty, Michael P.,Ye, Xin-Shan,Murphy, Paul V.
, p. 418 - 433 (2019/01/03)
1,5-Dideoxy-1,5-imino-L-fucitol (1-deoxyfuconojirimycin, DFJ) is an iminosugar that inhibits fucosidases. Herein, N-alkyl DFJs have been synthesised and tested against the α-fucosidases of T. maritima (bacterial origin) and B. taurus (bovine origin). The
Total synthesis of pipecolic acid and 1-: C -alkyl 1,5-iminopentitol derivatives by way of stereoselective aldol reactions from (S)-isoserinal
Ba?, Sebastian,Kusy, Rafa?,Pasternak-Suder, Monika,Nicolas, Cyril,Mlynarski, Jacek,Martin, Olivier R.
, p. 1118 - 1125 (2018/02/21)
A short synthesis of iminosugars and pipecolic acid derivatives has been realized through aldol addition of a pyruvate, a range of ketones and (S)-isoserinal, followed by catalytic reductive intramolecular amination. The stereoselective aldol reaction was achieved successfully by using tertiary amines or di-zinc aldol catalysts, thus constituting two parallel routes to optically pure products with good yields and high diastereo-selectivities. These carbohydrate analogues may be the inhibitors of potent glycosidases and glycosyltransferases.
Accessing 2-substituted piperidine iminosugars by organometallic addition/intramolecular reductive amination: Aldehyde: vs. nitrone route
Mirabella,Fibbi,Matassini,Faggi,Goti,Cardona
, p. 9121 - 9126 (2017/11/14)
A dual synthetic strategy to afford 2-substituted trihydroxypiperidines is disclosed. The procedure involved Grignard addition either to a carbohydrate-derived aldehyde or to a nitrone derived thereof, and took advantage of an efficient ring-closure reductive amination strategy in the final cyclization step. An opposite diastereofacial preference was demonstrated in the nucleophilic attack to the two electrophiles, which would finally produce the same piperidine diastereoisomer as the major product. However, use of a suitable Lewis acid in the Grignard addition to the nitrone allowed reversing the selectivity, giving access to 2-substituted piperidines with the opposite configuration at C-2.
Alternative synthesis and antibacterial evaluation of 1,5-dideoxy-1,5-imino-l-rhamnitol
Dharuman, Suresh,Wang, Yichen,Crich, David
, p. 29 - 32 (2016/01/09)
A convenient synthesis is described of 5-azido-5-deoxy-2,3-O-isopropylidene-l-rhamnofuranose from l-rhamnose in seven steps and 17% overall yield. A key feature of the synthesis is the selective oxidation of the secondary alcohol in 2,3-O-isopropylidene-l
In vitro and in vivo comparative and competitive activity-based protein profiling of GH29 α-L-fucosidases
Jiang, Jianbing,Kallemeijn, Wouter W.,Wright, Daniel W.,Van Den Nieuwendijk, Adrianus M. C. H.,Rohde, Veronica Coco,Folch, Elisa Colomina,Van Den Elst, Hans,Florea, Bogdan I.,Scheij, Saskia,Donker-Koopman, Wilma E.,Verhoek, Marri,Li, Nan,Schürmann, Martin,Mink, Daniel,Boot, Rolf G.,Codée, Jeroen D. C.,Van Der Marel, Gijsbert A.,Davies, Gideon J.,Aerts, Johannes M. F. G.,Overkleeft, Herman S.
, p. 2782 - 2789 (2015/09/02)
GH29 α-L-fucosidases catalyze the hydrolysis of α-L-fucosidic linkages. Deficiency in human lysosomal α-L-fucosidase (FUCA1) leads to the recessively inherited disorder, fucosidosis. Herein we describe the development of fucopyranose-configured cyclophellitol aziridines as activity-based probes (ABPs) for selective in vitro and in vivo labeling of GH29 α-L-fucosidases from bacteria, mice and man. Crystallographic analysis on bacterial α-L-fucosidase confirms that the ABPs act by covalent modification of the active site nucleophile. Competitive activity-based protein profiling identified l-fuconojirimycin as the single GH29 α-L-fucosidase inhibitor from eight configurational isomers.
Organocatalytic syn-aldol reactions of hydroxy ketones with (S)-isoserinal: Asymmetric synthesis of 6-deoxy-1,5-iminohexitols and related compounds
Nicolas, Cyril,Pluta, Roman,Pasternak-Suder, Monika,Martin, Olivier R.,Mlynarski, Jacek
, p. 1296 - 1305 (2013/04/10)
An improved and convenient preparation of protected (S)-isoserinal on a large scale is reported. This key intermediate was reacted through organocatalyzed aldol reaction or Wittig based chain extension and functionalization to give enantiopure 1,5,6-trideoxy-1,5-imino-hexitols such as 10a (L-manno) and 10b (D-gluco). These two compounds are of interest as glycosidase inhibitors. The elaborated organocatalytic process includes diastereoselective syn aldol reaction of (S)-isoserinal hydrate and hydroxyacetone or 1-hydroxy-2-octanone and is promoted by various amino acid-based catalysts. Diastereoselectivities of up to 8:1 were achieved, thus establishing a new, efficient synthetic route to these important carbohydrate mimics. A novel protocol for the preparation of 1,5,6-trideoxy-1,5-imino-L- mannitol and 1,5,6-trideoxy-1,5-imino-D-glucitol is reported. The key steps include organocatalyzed syn-selective direct aldol reaction of hydroxyacetone and CBz-protected isoserinal hydrate, followed by reductive amination/ cyclization. Copyright
Deoxygenative olefination reaction as the key step in the syntheses of deoxy and iminosugars
Hsu, Yung Chang,Hwu, Jih Ru
scheme or table, p. 7686 - 7690 (2012/09/07)
Just a spoonful of sugar! A new synthetic strategy involving the use of a deoxygenative olefination reaction as the key step was developed for the preparation of deoxy and iminosugars in their optically active form (see scheme). This strategy has been proven successful by the use of a pentose, hexose, heptose, and disaccharide as the starting materials. Furthermore, it was applied in a formal total synthesis of iminosugar (-)-1-deoxy-l- fuconojirimycin, which can inhibit a-l-fucosidase.
Asymmetric syntheses of 6-deoxyfagomin, d-deoxyrhamnojirimycin, and d-rhamnono-1,5-lactam
Fu, Rui,Du, Yu,Li, Zhao-Ying,Xu, Wei-Xuan,Huang, Pei-Qiang
experimental part, p. 9765 - 9771 (2010/01/16)
N-Allyl protected 3-O-benzyloxglutarimide 11 was synthesized as a useful variant of the chiral building block 10. This modification allowed a high-yielding deprotection of the allyl group from the lactam intermediate 14. Starting from this building block,
New building block for polyhydroxylated piperidine: Total synthesis of 1,6-dideoxynojirimycin
Rengasamy, Rajesh,Curtis-Long, Marcus J.,Woo, Duck Seo,Seong, Hun Jeong,Jeong, Ill-Yun,Ki, Hun Park
, p. 2898 - 2901 (2008/09/19)
(Chemical Equation Presented) (3R,4S)-3-Hydroxy-4-N-allyl-N-Boc-amino-1- pentene 10, an important precursor for the synthesis of polyhydroxylated piperidines, has been achieved as a single diastereomer without racemization via vinyl Grignard addition to N-Boc-N-allyl aminoaldehyde 9, which was derived from an enantiopure natural amino acid. Having forged a tetrahydropyridine ring scaffold 13 from 10 in 85% yield via RCM using Grubbs II catalyst, we were able to effect its stereodivergent dihydroxylation, via a common epoxide intermediate to yield a range of interesting hydroxylated piperidines, including ent-1,6-dideoxynojirimycin (ent-1,6-dDNJ) 1 (28% overall yield) and 5-amino-1,5,6-trideoxyaltrose 2 (29% over all yield) in excellent dr. To the best of our knowledge, our synthesis of ent-1,6-dDNJ 1 is the most expeditious to date.
D-fructose-6-phosphate aldolase-catalyzed one-pot synthesis of iminocyclitols
Sugiyama, Masakazu,Hong, Zhangyong,Liang, Pi-Hui,Dean, Stephen M.,Whalen, Lisa J.,Greenberg, William A.,Wong, Chi-Huey
, p. 14811 - 14817 (2008/09/19)
A one-pot chemoenzymatic method for the synthesis of a variety of new iminocyclitols from readily available, non-phosphorylated donor substrates has been developed. The method utilizes the recently discovered fructose-6-phosphate aldolase (FSA), which is functionally distinct from known aldolases in its tolerance of different donor substrates as well as acceptor substrates. Kinetic studies were performed with dihydroxyacetone (DHA), the presumed endogenous substrate for FSA, as well as hydroxy acetone (HA) and 1-hydroxy-2-butanone (HB) as donor substrates, in each case using glyceraldehyde-3-phosphate as acceptor substrate. Remarkably, FSA used the three donor substrates with equal efficiency, with kcat/KM-values of 33, 75, and 20 M -1 s-1, respectively. This level of donor substrate tolerance is unprecedented for an aldolase. Furthermore, DHA, HA, and HB were accepted as donors in FSA-catalyzed aldol reactions with a variety of azido- and Cbz-amino aldehyde acceptors. The broad substrate tolerance of FSA and the ability to circumvent the need for phosphorylated substrates allowed for one-pot synthesis of a number of known and novel iminocyclitols in good yields, and in a very concise fashion. New iminocyclitols were assayed as inhibitors against a panel of glycosidases. Compounds 15 and 16 were specific α-mannosidase inhibitors, and 24 and 26 were potent and selective inhibitors of β-N-acetylglucosaminidases in the submicromolar range. Facile access to these compounds makes them attractive core structures for further inhibitor optimization.