Photorearrangement of Quinoline-Protected Dialkylanilines and the Photorelease of Aniline-Containing Biological Effectors
作者:Davide Deodato、Naeem Asad、Timothy M. Dore
DOI:10.1021/acs.joc.9b01031
日期:2019.6.7
controlling the outcome of a photorearrangement reaction promoted by the (8-cyano-7-hydroxyquinolin-2-yl)methyl (CyHQ) photoremovable protecting group. The substrate scope was investigated to obtain structure–activity relationships and to propose a reaction mechanism. Introducing a methyl substituent at the 2-methyl position of the CyHQ core enabled the bypass of the photorearrangement and significantly improved
Substituent Effects on the Sensitivity of a Quinoline Photoremovable Protecting Group to One- and Two-Photon Excitation
作者:M. Jarrett Davis、Christopher H. Kragor、Khalilah G. Reddie、Hunter C. Wilson、Yue Zhu、Timothy M. Dore
DOI:10.1021/jo802658a
日期:2009.2.20
Photoremovableprotectinggroups that can reveal biologically important functional groups through one- and two-photon excitation (1PE and 2PE, respectively) have promise in regulating physiological function in a temporally and spatially restricted manner. Only a few chromophores have sufficient sensitivity to 2PE suitable for use as “caging groups” in physiology experiments. It would be useful to develop
BHQ-CAGED NUCLEOTIDE PROBES PHOTOLYSABLE BY TWO-PHOTON EXCITATION
申请人:Dore Timothy M.
公开号:US20100048502A1
公开(公告)日:2010-02-25
The disclosure encompasses caged compounds such as caged nucleoside phosphoesters (caged nucleotides). In an embodiment, the caged nucleotides include compounds corresponding to those described by formula (I) that may be activated by two-photon excitation, and methods of synthesis of such compounds. 8-Bromo-7-hydroxyquinoline-caged ATP was synthesized and examined for its photochemistry as a biologically useful, temporally and spatially controlled ATP-releasing reagent. The combination of two-photon excitation hydrolysis and activation of caged ATP enables methods for finely focusing ATP activation at the sub-cellular level or to a greater depth of activation, thereby providing improved resolution of ATP-dependent processes at the cellular level.
BHQ-caged nucleotide probes photolysable by two-photon excitation
申请人:University of Georgia Research Foundation, Inc.
公开号:US08173620B2
公开(公告)日:2012-05-08
The disclosure encompasses caged compounds such as caged nucleoside phosphoesters (caged nucleotides). In an embodiment, the caged nucleotides include compounds corresponding to those described by formula (I) that may be activated by two-photon excitation, and methods of synthesis of such compounds. 8-Bromo-7-hydroxyquinoline-caged ATP was synthesized and examined for its photochemistry as a biologically useful, temporally and spatially controlled ATP-releasing reagent. The combination of two-photon excitation hydrolysis and activation of caged ATP enables methods for finely focusing ATP activation at the sub-cellular level or to a greater depth of activation, thereby providing improved resolution of ATP-dependent processes at the cellular level.
Inspired by the 8-dimethylaminoquinoline (8-DMAQ) caging chromophore, photocleavable 8-aminoquinoline derivatives were prepared with the aim of furnishing a robust synthetic pathway for novel cage scaffolds. The four-step versatile process allows a facile introduction of various amino-substituents and its overall yield is feasible for scale-up. The novel photocages showed high photolysis efficiency