相关实验视频

Updated: Sep 15, 2025

18F-Labeling of Radiotracers Functionalized with a Silicon Fluoride Acceptor SiFA for Positron Emission Tomography

18F-Labeling of Radiotracers Functionalized with a Silicon Fluoride Acceptor SiFA for Positron Emission Tomography

Published on: January 11, 2020

开发异芳受体 (HetSiFAs) 用于F标记的放射性药物

Thomas A Singleton^1,2, HyunJune Jun³, Prashant S Deore⁴

¹Department of Neurology and Neurosurgery, McGill University, Montréal, Quebec H3A 2B4, Canada.

Journal of medicinal chemistry

|July 16, 2025

概括

新的异构芳香受体 (HetSiFAs) 为开发新型放射性药物提供了改进的特性. 这些较少的脂友性标记物使得癌症诊断和治疗中有效的18F标记成为可能.

科学领域:

放射化学放射化学是指辐射化学.
核医学就是核医学.
药用化学医学化学

背景情况:

化受体 (SiFAs) 对于用于PET成像和治疗术的的18F标记至关重要.
传统的SiFAs (PhSiFAs) 由于脂友性而带来挑战,复杂化了痕迹剂设计.
对于更广泛的放射性药物应用,需要具有改进性能的SiFA衍生物.

研究的目的:

引入一种新的异芳香SiFA衍生物 (HetSiFAs) 类.
为了评估 HetSiFAs 的稳定性,标记动力学和药理动力学特性.
为了证明HetSiFAs在开发新型18F标记放射性药物的潜力.

主要方法:

多种异芳香SiFA衍生物的合成和表征.
用模型 (TATE) 对HetSiFAs的18F标记效率和稳定性的评估.
在小鼠体内进行的药理动力学研究,以评估标记物清除和脱化.

主要成果:

与PhSiFAs相比,HetSiFAs表现出明显较低的脂友性.
HetSiFA 具有适当的稳定性和高效的 18F 标记动力学.
一种pyrazole-HetSiFA使TATE的快速18F标记成为可能,标记物显示出良好的干净和体内最小的脱化.

结论:

HetSiFA 代表了开发先进放射性药物的多功能支架.
降低脂友性和有效标签的HetSiFAs提供了改善的药物动力学特征.
这些新型SiFA衍生物对增强癌症成像和治疗应用具有前途.

更多相关视频

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate [18F]SFB

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate [18F]SFB

Published on: June 28, 2011

Radiosynthesis of 1-2-[18F]Fluoroethyl-L-Tryptophan using a One-pot, Two-step Protocol

Radiosynthesis of 1-2-[18F]Fluoroethyl-L-Tryptophan using a One-pot, Two-step Protocol

Published on: September 21, 2021

相关概念视频

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.