近年来合成了几种双功能螯合剂,用于开发新的64 Cu 基 PET 试剂用于体内成像。在设计基于金属的 PET 探针时,重要的是一旦配位放射性同位素就实现高稳定性和动力学惰性。不同的竞争性检测通常用于评估可能诱导体内 Cu (II) 释放的可能解离机制。其中,酸辅助解离测试或使用 EDTA 或 SOD 的螯合挑战经常用于评估溶液热力学和潜在金属基系统的动力学行为。尽管如此,可通过生物还原剂的存在促进的 Cu(II)/Cu(I) 生物还原途径仍然鲜有探索。为了填补这一空白,我们在此对不同大环 Cu(II) 配合物的动力学行为进行了详细的光谱研究。+,其结构是使用单晶 X 射线衍射确定的。使用 HClO 4和 HCl 研究了酸辅助解离机制,以分析抗衡离子对速率常数的影响。选择复合物是为了评估复合电荷和配位多面体的影响。进行循环伏安法实验以研究还原为 Cu(I) 是否落在常见生物还原剂的范围内。最引人注目的行为涉及
[EN] GRANZYME B DIRECTED IMAGING AND THERAPY<br/>[FR] IMAGERIE DU GRANZYME B ET THÉRAPIE DIRIGÉES CONTRE LE GRANZYME B
申请人:CYTOSITE BIOPHARMA INC
公开号:WO2019160916A1
公开(公告)日:2019-08-22
Provided herein are heterocyclic compounds useful for imaging Granzyme B. Methods of imaging Granzyme B, combination therapies, and kits comprising the Granzyme B imaging agents are also provided.
DUAL-TARGETED CARBONIC ANHYDRASE IX COMPLEX AND CONTRAST AGENT THEREOF
申请人:Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C
公开号:US20210154334A1
公开(公告)日:2021-05-27
Disclosed herein are a dual-targeted carbonic anhydrase IX complex, a contrast agent comprising the same, and a synthesizing method thereof. The dual-targeted carbonic anhydrase IX complex includes a carbonic anhydrase IX (CA9) binding peptide, a sulfonamide derivative, and a metal chelating agent. The dual-targeted carbonic anhydrase IX complex has potential for use as a molecular nuclear drug.
The present invention describes a compound of formula (I)
which can be used in the diagnosis, treatment or prevention of neurotensin receptor-related conditions such as tumors and hematological malignancies.
[EN] COMPOUNDS FOR FAST AND EFFICIENT CLICK RELEASE<br/>[FR] COMPOSÉS POUR LIBÉRATION DE CHIMIE CLICK RAPIDE ET EFFICACE
申请人:TAGWORKS PHARMACEUTICALS B V
公开号:WO2020256546A1
公开(公告)日:2020-12-24
The invention disclosed herein relates to compounds, combinations, kits, and methods using same, for use in bioorthogonal release reactions. In particular, the compounds, combinations and kits of the invention can be used to achieve fast and efficient click release. Applications of the compounds, combinations, and kits of the invention include both in vitro and in vivo applications.
[EN] RADIOLIGANDS FOR PRETARGETED PET IMAGING AND METHODS OF THEIR THERAPEUTIC USE<br/>[FR] RADIOLIGANDS POUR L'IMAGERIE TEP PRÉCIBLÉE ET MÉTHODES POUR LEUR UTILISATION THÉRAPEUTIQUE
申请人:MEMORIAL SLOAN KETTERING CANCER CENTER
公开号:WO2016182804A1
公开(公告)日:2016-11-17
Described herein are Tz/TCO-based pretargeting strategies using an Al[18F]-NOTA-labeled tetrazine radioligand. This imaging strategy enables delineation of cancer at earlier time points compared to other imaging strategies and further decreases the radiation dose to healthy tissues compared to directly labeled antibodies. Al-based 18F imaging of small molecules, such as tetrazine, has not been previously achieved due to the decomposition of tetrazine during radiofluorination. Radiofluorination is advantageous over other radiolabeling methods because, in addition to having a shorter half-life, 18F is more readily available to produce and therefore integrated into hospital workflows.