ω-Unsaturated α-amino acids are synthesized through condensation of allyl and propargyl bromides or of 9-bromoundecene with a Ni(II) complex of the Schiff base derived from glycine and BPB. Hydroboration with Ipc2BH followed by oxidation with acetaldehyde affords enantiomerically pure ω-borono-α-aminocarboxylic acids.
A New Strategy for the Development of Highly Potent and Selective Plasmin Inhibitors
作者:Sebastian M. Saupe、Torsten Steinmetzer
DOI:10.1021/jm2011996
日期:2012.2.9
inhibitors using metathesis or a copper-catalyzed azide alkyne cycloaddition in combination with standard peptide couplings. The most potent bis-triazole derivative 10 inhibits plasmin and plasma kallikrein with Ki of 0.77 and 2.4 nM, respectively, whereas it has poor activity against the related trypsin-like serine proteases thrombin, factor Xa, or activated protein C. Modeling experiments revealed
The present invention is directed towards new 18F-folate radiopharmaceuticals, wherein the 18Fisotope is linked via a prosthetic group, more specifically via a prosthetic group having a saccharide group, such as acyclic mono-or oligosaccharide, preferably based on a pyranoside or furanoside, which is covalently linked to the glutamate portion of a folateor derivative thereof, a method of their preparation, as well as their use in diagnosis and monitoring of cancer and inflammatory and autoimmune diseases and therapy thereof.
The present invention is directed towards new
18
F-folate radiopharmaceuticals, wherein the
18
F isotope is linked via a prosthetic group, more specifically via a prosthetic group having a saccharide group, such as a cyclic mono- or oligosaccharide, preferably based on a pyranoside or furanoside, which is covalently linked to the glutamate portion of a folate or derivative thereof, a method of their preparation, as well as their use in diagnosis and monitoring of cancer and inflammatory and autoimmune diseases and therapy thereof.
A new ligand binding pocket for additional pharmacophores in inhibitors of the bacteriallectin and virulence factor LecA from Pseudomonas aeruginosa was identified and successfully targeted, using a suite of modelling, chemical synthesis, and biophysical analyses. The crystal structure of LecA with one ligand targeting this central pocket was solved, and validated the concept.