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仪器网/ 行业应用/ 解决方案/ 使用Biotage Isolera快速纯化液相制备色谱进行一个新型

使用Biotage Isolera快速纯化液相制备色谱进行一个新型

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The [18F]fluorocyclobutyl group has the potential to be a metabolically stable prosthetic group for PET tracers. The synthesis of the radiolabe领 precursor cis-cyclobutane-1,3-diyl bis(toluene-4-sulfonate) 8 was obtained from epibromohydrin in 7 steps (2% overall yield). The radiolabe领 of this precursor 8 and its conjugation to L-tyrosine as a model system was successfully achieved to give the new nonnatural amino acid 3-[18F]fluorocyclobutyl-L-tyrosine (L-3-[18F]FCBT) [18F]17 in 8% decay-corrected yield
from the non-carrier-added [18F]fluoride. L-3-[18F]FCBT was investigated in vitro in different cancer cell lines to determine the uptake and stability. The tracer [18F]17 showed a time dependent uptake into different tumor cell lines (A549, NCI-H460, DU145) with the best uptake of 5.8% injected dose per 5 105 cells after 30 min in human lung carcinoma cells A549. The stability of L-3-[18F]FCBT in human and rat plasma and the stability of the non-radioactive L-3-FCBT in rat hepatocytes were both found to be excellent. These results show that the non-natural amino acid L-3-[18F]FCBT is a promising metabolically stable radiotracer for positron emission tomography. Biotage 快速纯化制备液相色谱 Flash Isolera one Biotage 快速纯化制备液相色谱 Flash Isolera Prime Biotage 快速纯化制备液相色谱 Flash Isolera LS
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