Alcohol, Aldehyde, and Ketone Liberation and Intracellular Cargo Release through Peroxide-Mediated α-Boryl Ether Fragmentation
作者:Ramsey D. Hanna、Yuta Naro、Alexander Deiters、Paul E. Floreancig
DOI:10.1021/jacs.6b07890
日期:2016.10.12
α-Boryl ethers, carbonates, and acetals, readily prepared from the corresponding alcohols that are accessed through ketone diboration, react rapidly with hydrogen peroxide to release alcohols, aldehydes, and ketones through the collapse of hemiacetal intermediates. Experiments with α-boryl acetals containing a latent fluorophore clearly demonstrate that cargo can be released inside cells in the presence
α-硼醚、碳酸酯和缩醛很容易由通过酮二硼化获得的相应醇制备,与过氧化氢快速反应,通过半缩醛中间体的塌陷释放醇、醛和酮。使用含有潜在荧光团的α-硼基乙缩醛进行的实验清楚地表明,在存在外源或内源过氧化氢的情况下,货物可以在细胞内释放。这些实验表明,该方案可用于氧化环境中的药物激活,而不会产生有毒副产物。