Spacer Effects on in vivo Properties of DOTA-Conjugated Dimeric [Tyr3]Octreotate Peptides Synthesized by a “CuI-Click” and “Sulfo-Click” Ligation Method
作者:Cheng-Bin Yim、Berend van der Wildt、Ingrid Dijkgraaf、Lieke Joosten、Annemarie Eek、Cees Versluis、Dirk T. S. Rijkers、Otto C. Boerman、Rob M. J. Liskamp
DOI:10.1002/cbic.201000639
日期:2011.3.21
Double click on tumor: This study reports the prolonged tumor‐retention of a [Tyr3]octreotate dimer, synthesized by using a combination of CuI‐catalyzed 1,3‐dipolar cycloaddition (“copper‐click”) and thio acid/sulfonyl azide amidation (“sulfo‐click”), and shows that modification of the spacer between the two [Tyr3]octreotate motifs affects its pharmacokinetic profile.
Synthesis of DOTA-Conjugated Multimeric [Tyr<sup>3</sup>]Octreotide Peptides via a Combination of Cu(I)-Catalyzed “Click” Cycloaddition and Thio Acid/Sulfonyl Azide “Sulfo-Click” Amidation and Their in Vivo Evaluation
作者:Cheng-Bin Yim、Ingrid Dijkgraaf、Remco Merkx、Cees Versluis、Annemarie Eek、Gwenn E. Mulder、Dirk T. S. Rijkers、Otto C. Boerman、Rob M. J. Liskamp
DOI:10.1021/jm100246m
日期:2010.5.27
Herein, we describe the design, synthesis, and biological evaluation of a series of DOTA-conjugated monomeric, dimeric, and tetrameric [Tyr3]octreotide-based analogues as a tool for tumor imaging and/or radionuclide therapy. These compounds were synthesized using a Cu(I)-catalyzed 1,3-dipolar cycloaddition (“click” reaction) between peptidic azides and dendrimer-derived alkynes and a subsequent metal-free