[EN] CHELATORS, PARAMAGNETIC CHELATES THEREOF AND THEIR USE AS CONTRAST AGENTS IN MAGNETIC RESONANCE IMAGING (MRI) [FR] CHÉLATEURS, CHÉLATES PARAMAGNÉTIQUES DE CEUX-CI ET LEUR UTILISATION EN TANT QU'AGENTS DE CONTRASTE DANS L'IMAGERIE PAR RÉSONANCE MAGNÉTIQUE (IRM)
PROCESS FOR THE PREPARATION OF SUBSTITUTED PYRIDONE CARBOXYLIC ACIDS
申请人:KULANGARA VIJAYA RAJ KUNIYIL
公开号:US20100076199A1
公开(公告)日:2010-03-25
The present invention relates to methods for the preparation of pyridone carboxylic acids for use as intermediates in the preparation of various synthetic organic compounds. The pyridone carboxylic acids can for example be used as intermediates in the production of potent antitumor agents, antifungal agents, antiviral agents, psychotherapeutic agents or contrast imaging agents for MRI.
The present invention describes 1-aminoadamantane derivatives and 3-aminoadamantane-1-carboxylic derivatives in which the 5- or 7-position of the basic adamantane structure can be optionally substituted, methods for the production of the compounds based on the present invention, and methods for the coupling of the monomeric 3-aminoadamantane-1-carboxylic derivatives thus obtained to oligomers. The compounds based on the present invention are suitable for the utilisation as antiviral active ingredients, artificial ion channels, as well as for the therapy, diagnostics and prophylaxis of diseases in which a dysfunction of the GABA system occurs.
CHELATORS, PARAMAGNETIC CHELATES THEREOF AND THEIR USE AS CONTRAST AGENTS IN MAGNETIC RESONANCE IMAGING (MRI)
申请人:Wadsworth Harry John
公开号:US20110200536A1
公开(公告)日:2011-08-18
The present invention relates to chelators, in particular to chelators which are capable of forming complexes, i.e. paramagnetic chelates, with paramagnetic metal ions. The invention also relates to said paramagnetic chelates, said paramagnetic chelates linked to other molecules and their use as contrast agents in magnetic resonance imaging (MRI).
High Yield Selective Acylation of Polyamines: Proton as Protecting Group
作者:Asmik Oganesyan、Iris A. Cruz、Roberto B. Amador、Nohemy A. Sorto、Jose Lozano、Carlos E. Godinez、Jaime Anguiano、Heather Pace、Ghiwa Sabih、Carlos G. Gutierrez
DOI:10.1021/ol702206d
日期:2007.11.1
An advance in the selective acylation of polyamines having identical or similar amine functions is reported. While nucleophilicity differences between the various amine functions are slight, the corresponding conjugate acids exhibit pK(a) values over a significant range. We have used proton as polyamine protecting group: the monoamine resulting from single deprotonation of a polyammonium compound has allowed for high yields of selective acylation.
AROMATIC MULTIMERS
申请人:Meijer Andreas
公开号:US20100008864A1
公开(公告)日:2010-01-14
The present invention relates to novel compounds of formula (I) and (II), compositions comprising compounds of formula (II) and their use as contrast agents in magnetic resonance (MR) imaging (MRI) and MR spectroscopy (MRS).