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SH-FAPI-4 is a specific fibroblast activation protein inhibitor (FAPI) compound that belongs to the FAPI family of molecules. SH-FAPI-4 is expected to selectively accumulate in FAP-positive tumors and disrupt the functions of cancer-associated fibroblasts (CAFs) within the tumor microenvironment. By inhibiting FAP activity, this compound aims to potentially slow tumor growth, enhance the efficacy of other cancer treatments, and modulate the tumor microenvironment.
NOP-1A standard. 11C-NOP-1A is a new radioligand for thenociceptin/orphanin FQ peptide (NOP) receptor, with high affinity (Ki, 0.15 nM) and appropriate lipophilicity (measured logD, 3.4) for PET brain imaging. 11C-NOP-1A is the the first successful radioligand to image NOP receptors in rat and monkey brain. 11C-NOP-1A is a selective antagonist at the NOP receptor and has high affinity and appropriate lipophilicity for blood–brain barrier permeability. 11C-NOP-1A imaging in rhesus monkeys showed high brain uptake and a large receptor-specific signal and could be quantified with the gold standard method of compartmental modeling. In humans 1C-NOP-1A reliably quantified NOP receptors in human brain both in large brain regions and at a voxelwise level using parametric imaging. The radiation absorbed dose in humans was similar to that observed with other 11C-labeled ligands and would allow multiple scans of a single subject. Thus, 11C-NOP-1A is a promising radioligand for reliably quantifying NOP receptors in human brain.
The Precursor of NOP-1A. (11)C-NOP-1A is a useful radioligand for quantifying NOP receptors in the monkey brain, and its radiation dose is similar to that of other (11)C-labeled ligands for neuroreceptors.
PI-2620 precursor is the precursor of PI2620. 18F-PI-2620 is a PET tracer with high binding affinity for aggregated tau, a key pathologic feature of Alzheimer disease (AD) and other neurodegenerative disorders.
mono-Boc-Br MK-6240 Precursor is the precusor of MK-6240.. (18)F]-MK-6240 is a tau positron emission tomography (PET) tracer for neurofibrillary tangles (NFTs), exhibiting high specificity and selectivity for binding to NFTs .
Precursor of Cholestify,18F-Cholestify, which binds cytochrome P450 46A1, detected cholesterol breakdown in the mammalian brain. CYP46A1 converts cholesterol to 24-hydroxycholesterol, a form easily eliminated from the brain.
DesMEM AZD4694(AZD4694 Precursor 1)is the precursor of [18F] AZD4694 for the synthesis of [18F] AZD4694, an amyloid-β imaging ligand with high affinity for amyloid-β plaques.
DOTA-NOC (DOTA-Nal3-octreotide) is a high-affinity ligand of somatostatin receptor subtypes 2, 3 and 5. DOTA-NOC can be used for labeling with various radiometals, and development of radiopeptide imaging.
NOTA-octreotide is a ligand for making [18F]AlF-NOTA-octreotide, which is a PET/CT imaging agent for somatostatin receptor imaging in neuroendocrine tumor patients
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