Method of synthesizing compounds having a phosphorus-fluorine-18 bond
申请人:Adam J. Michael
公开号:US20050175534A1
公开(公告)日:2005-08-11
Provided are methods for synthesizing radiotracers, including no carrier added (n.c.a.) tracers suitable as PET scan tracers that contain a
18
F—P bond. The radiolabeled products may be synthesized from precursors including phosphorus(V) and/or phosphorus (III) atoms bound to a suitable leaving group or group(s). For example, precursors incorporating a nitrophenoxy leaving group bound to a phosphorus(V) atom tend to exhibit an acceptable combination of stability and reactivity and also tend to allow the precursor compound(s) to be separated more easily from the
18
F-labeled products. The methods disclosed herein for producing radiolabeled compounds incorporating a P—
18
F chemistry may particularly useful radiolabeling oligonucleotides, phospholipids, phosphorilated proteins, sugars and steroids for use as PET radiotracer compounds for medical imaging applications.
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.
少量配体杂质的统计掺入会对由相应配体生成的金属有机络合物的纯度产生破坏性影响。
[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.