Sulfonylcyanoguanidines and sulfonamidonitroethylenes are bioisosteres of hypoglycemic sulfonylureas and were prepared and evaluated for their insulin release potency from rat pancreatic islets. At 25 mu M, both bioisosteres of glibenclamide, sulfonylcyanoguanidine 22 and sulfonamidonitroethylene 23, were as potent as their parent on insulin secretion.
[EN] BLOOD IMAGING<br/>[FR] IMAGERIE DU SANG
申请人:UNIV LEUVEN KATH
公开号:WO2009140743A2
公开(公告)日:2009-11-26
The invention generally relates to the application of imaging techniques, in particular positron emission tomography (PET) or single photon emission tomography (SPECT), in the assessment of physiological parameters in a subject. The compounds of the present invention were shown to be cell membrane permeant and to have a specific binding affinity (or substrate affinity) for the carbonic anhydrases type I and II, and are accordingly useful for the in vivo and in vitro labeling of erythrocytes (RBC). It is accordingly an object of the present invention to provide said novel compounds, in particular the radio labeled variants thereof, and their use in imaging techniques to perform the assessment of physiological parameters, such as blood volume measurements, or blood flow measurements.