Synthesis of nitroxide containing polyenes: Two chemically modified retinals and their interaction with bacterioopsin
作者:M. Groesbeek、J. Lugtenburg
DOI:10.1002/recl.19951140906
日期:——
The synthesis and spectroscopic characterization of tworetinal analogues is described, the paramagnetic 3-pyrrolin-1-yloxy analogue 1 and its diamagnetic equivalent, the 3-pyrroline analogue 2. Various aspects of the synthesis of the aminoxy group containingpolyenes are discussed. Upon interaction with bacterioopsin, both 1 and 2 are incorporated in the protein and form a system with λmax 459 nm
Spin‐Labeled Riboswitch Synthesized from a Protected TPA Phosphoramidite Building Block
作者:Frank Kaiser、Burkhard Endeward、Alberto Collauto、Ute Scheffer、Thomas F. Prisner、Michael W. Göbel
DOI:10.1002/chem.202201822
日期:2022.10.7
nitroxide TPA (2,2,5,5-tetramethyl-pyrrolin-1-oxyl-3-acetylene) has been protected with a light sensitive 2-NBOM group and connected to a uridine phosphoramidite building block. Spin-labeled RNA can be obtained from this compound by standard protocols of oligonucleotidesynthesis and used for EPR studies after light-induced deprotection.