2022
DOI: 10.26434/chemrxiv-2022-xrq3p-v2
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A Concise Synthetic Approach to Highly Reactive Click-to-Release Trans-Cyclooctene Linkers

Abstract: An increase of the click-to-release reaction rate between cleavable trans-cyclooctenes (TCO) and tetrazines would be beneficial for drug delivery applications. In this work, we developed a short and stereoselective synthesis route towards highly reactive sTCOs that serve as cleavable linkers, affording quantitative tetrazine-triggered payload release. In addition, the 5-fold more reactive sTCO exhibited the same in vivo stability as the parent TCO linker when used as antibody linker in circulation in mice.

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“…Besides, to address the low DAR of conventional coupling techniques, Dantari's T‐HDC technology “packages” the payload by using polymer molecules and then couples the polymer‐packaged payload to the antibody. This load‐release system can carry more payloads, and one antibody can carry more than 60 payload molecules [78]. Dolaflexin, a multiwarhead ADC platform of Mersana, also uses polymers to develop high DAR ADC drugs.…”
Section: Future Developments On Adcsmentioning
confidence: 99%
“…Besides, to address the low DAR of conventional coupling techniques, Dantari's T‐HDC technology “packages” the payload by using polymer molecules and then couples the polymer‐packaged payload to the antibody. This load‐release system can carry more payloads, and one antibody can carry more than 60 payload molecules [78]. Dolaflexin, a multiwarhead ADC platform of Mersana, also uses polymers to develop high DAR ADC drugs.…”
Section: Future Developments On Adcsmentioning
confidence: 99%