Development of the 8-aza-3-bromo-7-hydroxycoumarin-4-ylmethyl group as a new entry of photolabile protecting groups
作者:Hikaru Takano、Tetsuo Narumi、Nami Ohashi、Akinobu Suzuki、Toshiaki Furuta、Wataru Nomura、Hirokazu Tamamura
DOI:10.1016/j.tet.2014.04.063
日期:2014.7
substitution effect of the position of the bromo group on the photosensitivity of the 8-azacoumarin chromophore leads to the development of a highly photosensitive 8-aza-3-bromo-7-hydroxycoumarin-4-ylmethyl (aza-3-Bhc) group that shows excellent photolytic efficiency and hydrophilicity with long-wavelength absorption maxima. The newly identified aza-3-Bhc group can be applied to caged glutamates for
溴基团的位置对8-氮杂香豆素发色团的光敏性具有显着的取代作用,导致开发出高度光敏的8-氮杂-3-溴-7-羟基香豆素-4-基甲基(氮杂-3-Bhc)该组显示出优异的光解效率和亲水性,并具有长波吸收最大值。新近鉴定的aza-3-Bhc基团可用于笼状谷氨酸盐,以对羧基和氨基官能团进行酯型和氨基甲酸酯型保护。