Fluorine‐18 labeled aldehydes as prosthetic groups for oxime coupling with a FVIIa protein
摘要:
18F‐labeled aldehydes can be utilized for oxime coupling with chemically sensitive proteins, such as coagulation factor VII (FVII), if they are sufficiently reactive and can react in an aqueous solvent. New 18F‐labeled nonvolatile aldehyde prosthetic groups derived from [18F]F‐Py‐TFP and spirocyclic iodonium (III)ylide precursors for late stage 18F‐labeling were developed. These precursors were characterized, 18F‐labeled, and compared in reactivity for oxime coupling. Oxime coupling was performed on an amino‐oxy modified inhibited factor VII (FVIIai‐ONH2) in low concentration to prove the applicability of the proposed method.
[EN] PSMA-TARGETING IMAGING AGENTS<br/>[FR] AGENTS D'IMAGERIE CIBLANT LE PSMA
申请人:CLEVELAND CLINIC FOUND
公开号:WO2021086917A1
公开(公告)日:2021-05-06
A PSMA-specific agent comprising a compound according to Formula I or Formula II: wherein S1 is absent or is an organic spacer group comprising 3-10 carbons; A is an amino acid chain comprising 1 to 5 amino acids wherein at least one of the amino acids is selected from glutamic acid and aspartic acid; S2 is absent or is an organic spacer group comprising 1 to 15 carbons and/or 0 to 2 amino acids; I1 is an imaging group; and I2 is absent or is an imaging group. The PSMA-specific agents can be used to image PSMA within a tissue region and/or for the treatment of a cancer, such as prostate cancer.
[EN] RADIOLABELLING REAGENTS AND METHODS<br/>[FR] RÉACTIFS ET PROCÉDÉS DE RADIOMARQUAGE
申请人:GE HEALTHCARE LTD
公开号:WO2010114723A1
公开(公告)日:2010-10-07
The present invention relates to reagents and methods for [18F]-fluorination of biomolecules, particularly of peptides. The resultant 18F-labelled compounds are useful as radiopharmaceuticals, specifically for use in Positron Emission Tomography (PET).