화학공학소재연구정보센터
Journal of the American Chemical Society, Vol.139, No.36, 12591-12600, 2017
Photochemical Activation of Tertiary Amines for Applications in Studying Cell Physiology
Representative tertiary amines were linked to the 8-cyano-7-hydroxyquinolinyl (CyHQ) photoremovable protecting group (PPG) to create photoactivatable forms suitable for use in studying cell physiology. The photoactivation of tamoxifen and 4-hydroxytamoxifen, which can be used to activate Cre recombinase and CR1SPR-Cas9 gene editing, demonstrated that highly efficient release of bioactive molecules could be achieved through one-and two-photon excitation (WE and 2PE). CyHQ-protected anilines underwent a photoaza-Claisen rearrangement instead of releasing amines. Time-resolved spectroscopic studies revealed that photorelease of the tertiary amines was extremely fast, occurring from a singlet excited state of CyHQ on the 70 Ps time scale.