Results 81 to 90 of about 2,579 (147)

Diastereoselective Entry to Novel Aminoindolizidines with Fused Furan, Thiophene, and Pyrrole Ring Starting from L‐Glutamic Acid

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 6, February 10, 2025.
A series of novel aminoindolizidines fused to (tetrahydro)furan, thiophene or pyrrole nuclei were synthesized using a concise and diastereoselective approach from optically pure tricyclic heteroaryl‐indolizidinols as key substrates. The synthesis involved Jurjew‐type skeletal rearrangement, Staudinger reduction, Thompson azidation and Ra−Ni mediated ...
Paula Fraňová   +5 more
wiley   +1 more source

Highly diastereoselective synthesis of aza-diels-alder reaction of danishefsky diene wiht glyoxylate imines [PDF]

open access: yes, 2012
Aza-Diels-Alder reaction is an exceptionally powerful synthetic method for the construction of six-membered nitrogen-heterocycles.[1-3] The reaction of Danishefsky's diene 1 with iminoacetates 2 (imines of glyoxylates) provides a convenient protocol for ...
Alves, M. José   +2 more
core  

6-Deoxyhexoses froml-Rhamnose in the Search for Inducers of the Rhamnose Operon: Synergy of Chemistry and Biotechnology [PDF]

open access: yes, 2016
In the search for alternative non‐metabolizable inducers in the l ‐rhamnose promoter system, the synthesis of fifteen 6‐deoxyhexoses from l ‐rhamnose demonstrates the value of synergy between biotechnology and chemistry.
Estévez, Amalia   +12 more
core   +3 more sources

Probing the Influence of Linker Length and Flexibility in the Design and Synthesis of New Trehalase Inhibitors

open access: yesMolecules, 2018
This work aims to synthesize new trehalase inhibitors selective towards the insect trehalase versus the porcine trehalase, in view of their application as potentially non-toxic insecticides and fungicides.
Giampiero D’Adamio   +7 more
doaj   +1 more source

Natural products with therapeutic potential in melanoma metastasis [PDF]

open access: yes, 2015
Malignant melanoma is the most aggressive form of skin cancer and accounts for about 3% of all cases of malignant tumour. Its incidence is increasing worldwide and it is becoming resistant to current therapeutic agents.
AlQathama, A, Prieto, JM
core   +1 more source

Stereoselectively fluorinated N-heterocycles: a brief survey

open access: yesBeilstein Journal of Organic Chemistry, 2013
The stereoselective incorporation of fluorine atoms into N-heterocycles can lead to dramatic changes in the molecules’ physical and chemical properties.
Xiang-Guo Hu, Luke Hunter
doaj   +1 more source

Anwendungen der Olefinmetathese in der Synthese von Azazuckern [PDF]

open access: yes, 2000
Anwendungen der Olefinmetathese in der Synthese von Azazuckern Polyhydroxylierte Derivate monocyclischer und bicyclischer stickstoffhaltiger Ringsysteme, wie z.B.
Voigtmann, Ulrike
core   +1 more source

Synthesis and biological evaluation of nojirimycin- and pyrrolidine-based trehalase inhibitors

open access: yesBeilstein Journal of Organic Chemistry, 2012
A small set of nojirimycin- and pyrrolidine-based iminosugar derivatives has been synthesized and evaluated as potential inhibitors of porcine and insect trehalases.
Davide Bini   +6 more
doaj   +1 more source

Therapeutic strategies based on modified U1 snRNAs and chaperones for Sanfilippo C splicing mutations [PDF]

open access: yes, 2015
Mutations affecting RNA splicing represent more than 20% of the mutant alleles in Sanfilippo syndrome type C, a rare lysosomal storage disorder that causes severe neurodegeneration. Many of these mutations are localized in the conserved donor or acceptor
Alves, Sandra   +11 more
core   +1 more source

The synthesis of an homochiral aziridine as a useful synton to iminosugars and amino acid compounds [PDF]

open access: yes, 2011
Fundação para a Ciência e a Tecnologia (FCT) - PTDC/QUI/67407 ...
Alves, M. José   +4 more
core  

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