A New Strategy for Preparing Molecular Imaging and Therapy Agents Using Fluorine-Rich (Fluorous) Soluble Supports
作者:Amanda Donovan、Jane Forbes、Peter Dorff、Paul Schaffer、John Babich、John F. Valliant
DOI:10.1021/ja0600375
日期:2006.3.1
convenient new strategy for producing radiolabeled compounds in high effective specific activity was developed usingsoluble fluorous supports. The reported methodology involves a fluorous linker group that is released from the substrate of interest upon reaction with radioiodine. The desired product can then be selectively separated from unreacted starting material and reaction byproducts using a simple
Fluorous Analogue of Chloramine-T: Preparation, X-ray Structure Determination, and Use as an Oxidant for Radioiodination and s-Tetrazine Synthesis
作者:James P. K. Dzandzi、Denis R. Beckford Vera、Afaf R. Genady、Silvia A. Albu、Louise J. Eltringham-Smith、Alfredo Capretta、William P. Sheffield、John F. Valliant
DOI:10.1021/acs.joc.5b00988
日期:2015.7.17
chemistry has been developed. The oxidant was prepared in 87% overall yield by combining a fluorous amine with tosyl chloride, followed by chlorination using aqueous sodium hypochlorite. A crystal structure of the oxidant, which is a fluorous analogue of chloramine-T, was obtained. The compound was shown to be stable for 7 days in EtOH and for longer than three months as a solid. The oxidant was effective
MOREAU M. -F.; PARRY D.; MICHELOT J.; LABARRE P.; MADELMONT J. -C.; VEYRE+, EUR. J. MED. CHEM., 21,(1986) N 5, 423-431
作者:MOREAU M. -F.、 PARRY D.、 MICHELOT J.、 LABARRE P.、 MADELMONT J. -C.、 VEYRE+
DOI:——
日期:——
A hybrid solid-fluorous phase radioiodination and purification platform
作者:James P. K. Dzandzi、Denis R. Beckford Vera、John F. Valliant
DOI:10.1002/jlcr.3214
日期:2014.7
A new class of fluorous materials was developed to create a hybrid solid-solution phase strategy for the expedient preparation and HPLC-free purification of 125I-labeled compounds. The system is referred to as a hybrid platform in that it combines solution phase labeling and fluorous solid-phase purification in one step as opposed to two separate individual processes. Treatment of fluorous arylstannanes coated on fluorous silica with [125I]NaI and the appropriate oxidant made it possible to produce and selectively isolate the nonfluorous radiolabeled products in high purity (>98%) free from excess starting material and unreacted radioiodine. Examples included simple aryl and heterocyclic (click) derivatives, known radiopharmaceuticals including meta-iodobenzylguanidine (MIBG) and iododeoxyuridine (IUdR), and a new agent with high affinity for prostate-specific membrane antigen. The coated fluorous silica kits are simple to prepare, and reactions can be performed at room temperature using different oxidants generating products in minutes in biocompatible solutions.