Amplification of impurity upon complex formation: how a 2% ligand impurity lowers the corresponding complex purity to 50%
作者:Vageesha W. Liyana Gunawardana、Gellert Mezei
DOI:10.1039/c8nj04176h
日期:——
Statistical incorporation of small amounts of ligand impurities has devastating consequences on the purity of metal–organic complexes derived from the respective ligands.
[EN] IODO PRECURSOR FOR A PET IMAGING AGENT OF AMYLOID PLAQUES<br/>[FR] PRÉCURSEUR IODO POUR UN PRODUIT D'IMAGERIE PAR TEP DE PLAQUES AMYLOÏDES
申请人:BAYER SCHERING PHARMA AG
公开号:WO2011095593A1
公开(公告)日:2011-08-11
The invention relates to a precursor for a [18F]-labeled PET tracer for imaging of Alzheimer's Disease, its synthesis and the process for preparing the respective [18F]-labeled PET tracer.
[EN] A NOVEL PET IMAGING AGENT OF AMYLOID PLAQUES AND ITS PRECURSOR<br/>[FR] NOUVEL AGENT POUR L'IMAGERIE TEP DES PLAQUES AMYLOÏDES ET SON PRÉCURSEUR
申请人:BAYER PHARMA AG
公开号:WO2011110488A1
公开(公告)日:2011-09-15
The invention relates to a [18F]-labeled PET tracer for imaging of Alzheimer's Disease, a suitable precursor for that PET tracer, and the process for preparing the respective [18F]-labeled PET tracer of the fol lowing Formula, wherein X is selected from the group consisting of: F, CI, Br, I, 18F, F, leaving groups, such as nitro and trimethyl ammonium, or a pharmaceutically acceptable salt thereof.
[EN] RADIONUCLIDE TRACERS OF 1-AMINO-3,4-DIFLUOROCYCLOPENTANE-1-CARBOXYLIC ACID, DERIVATIVES, AND USES THEREOF<br/>[FR] TRACEURS RADIONUCLÉIDES DE L'ACIDE 1-AMINO-3,4-DIFLUOROCYCLOPENTANE-1-CARBOXYLIQUE, LEURS DÉRIVÉS ET LEURS UTILISATIONS
申请人:UNIV EMORY
公开号:WO2021188592A1
公开(公告)日:2021-09-23
This disclosure relates to 1-amino-3,4-difluorocyclopentane-1-carboxylic acid, esters, derivatives, or salts having positron emitting radionuclides for use as radionuclide tracers. In certain embodiments, 1-amino-3,4-difluorocyclopentane-1-carboxylic acid is isotopically enriched with fluorine 18. In certain embodiments, the radionuclide tracer is amino-3-fluoro-4-[18F]fluorocyclopentane-1-carboxylic acid. In certain embodiments, the radionuclide tracers are useful to indicate the existence of and/or position of a tumor or cancerous cells in a subject.
Method for the preparing biphenyltetrazole compounds which are angiotensin II receptor antagonists or which are useful intermediates to prepare angiotensin II receptor antagonists. An illustrative biphenyl tetrazole compound is 2-n-butyl-4-chloro-1-[(2'-(tetrazol-5-yl)-1,1'-biphenyl-4-yl)methyl]-1H-im idazole-5-methanol, potassium salt.