A New Regioselective Heck Vinylation with Enamides. Synthesis and Investigation of Fluorous-Tagged Bidentate Ligands for Fast Separation
作者:Karl S. A. Vallin、Qisheng Zhang、Mats Larhed、Dennis P. Curran、Anders Hallberg
DOI:10.1021/jo034265i
日期:2003.8.1
times of only 15-30 min. New bidentate fluorous-tagged 1,3-bis(diphenylphosphino)propane ligands (F-dppp's) were synthesized and examined. The cationic vinylations of the enamides with F-dppp ligands rendered essentially the same alpha-selectivity and catalytic activity as in those vinylations where nonfluorous ligands were employed. After reaction, the fluorous-tagged ligand material was easily removed
[EN] PREPARATION OF LABELLED COMPOUNDS<br/>[FR] PRÉPARATION DE COMPOSÉS MARQUÉS
申请人:ISIS INNOVATION
公开号:WO2010133851A1
公开(公告)日:2010-11-25
The invention relates to a process for producing a labelled compound, which process comprises treating a compound of formula (I), wherein X is a moiety to be labelled or a detectable label, and R1, R2, R3 and R4 are substitutent groups as defined herein; with a compound of formula (II) : N3-L-Y (π) wherein Y is a detectable label or a moiety to be labelled, provided that if X in the compound of formula (I) is a moiety to be labelled, then Y is a detectable label and if X in the compound of formula (I) is a detectable label, then Y is a moiety to be labelled; and L is a bond or a linking group, thereby producing a labelled compound of formula (IH) by Staudinger Ligation. Groups R3 and R4 may comprise fluorous moieties, in order to facilitate purification of the labelled compound of formula (IH). The invention also provides methods of imaging a human or non-human patient or a cell or in vitro sample, using the labelled compound of formula (III) thus produced, as well as imaging methods in which the compounds of formulae (I) and (II) are administered to the patient, cell or sample. The invention further provides novel compounds of formula (I) and formula (III), a process for producing the compounds of formula (T), and a combination product for medical imaging comprising a compound of formula (I) and a compound of formula (II).