期刊
BIOCONJUGATE CHEMISTRY
卷 26, 期 8, 页码 1461-1465出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.bioconjchem.5b00280
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- French Ministry of Research
- International Center for Frontier Research in Chemistry (icFRC)
pH-sensitive linkers designed to undergo selective hydrolysis at acidic pH compared to physiological pH can be used for selective release of therapeutics selectively at targets and orthoesters have been demonstrated to be good candidates for such linkers. Following an HPLC screening, a Spiro Diorthoester (SpiDo) derivative was identified as a potent acid-labile group for the development of pH-sensitive targeted systems. After incorporation of this linker into activatable FRET-based probe and side-by-side comparison to a well-known alkylhydrazone linker, this SpiDo linker has shown a fast and pH sensitive hydrolysis for mild acidic conditions, a pH sensitive lysosomal hydrolysis, and high stability in human plasma.
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