Targeting HER2-Receptors with 177Lu-Labeled Triazole Stapled Cyclic Peptidomimetic
作者:Amit Kumar Sharma、Drishty Satpati、Rohit Sharma、Amit Das、Haladhar Dev Sarma、Archana Mukherjee
DOI:10.1016/j.bioorg.2023.106503
日期:2023.3
synthesize triazole-stapled cyclicpeptidomimetic, DOTA-c[TZ]A9 targeting HER2 receptor expression in breast cancers. Spectroscopic (circular dichroism) and docking analysis provided evidence of enhanced helicity and secondary structure stabilization along with improved HER2 affinity in comparison to the corresponding linear peptide, DOTA-[Pra1, Aza7]A9. 177Lu-labeled cyclic peptide, 177Lu-DOTA-c[TZ]A9
biological activities, including antiviral, anticancer, and antibacterial activity. A series of novel triazoles were prepared by the 1,3-dipolar cycloaddition reaction between the alkyne derivatives of betulin and organic azides. The chemical structures of the obtained compounds were defined by 1H and 13C NMR, IR, and high-resolution mass spectrometry (HR-MS) analysis. The target triazoles were screened