1196980-30-9Relevant articles and documents
Enantioselective syntheses of α-Fmoc-Pbf-[2-13C]-L- arginine and Fmoc-[1,3-13C2]-L-proline and incorporation into the neurotensin receptor 1 ligand, NT8-13
Song, Chuanjun,Tapaneeyakorn, Satita,Murphy, Annabel C.,Butts, Craig,Watts, Anthony,Willis, Christine L.
experimental part, p. 8980 - 8987 (2010/03/02)
(Chemical Equation Presented) Enantioselective syntheses of selectively labeled, orthogonally protected [2-13C]-L-arginine and [1,3- 13C2]-L-proline are described from the commercially available precursors [2-13C]bromoacetic acid and potassium [ 13C]cyanide. Interestingly the enhanced signal assigned to C-2 in the 13C NMR spectrum of α-Fmoc-Pbf-[2-13C]-L-arginine was very broad at room temperature. The two Fmoc-labeled amino acids were used to prepare [2-13C]-Arg9 and [1,3-13C2]-Pro10 labeled ligand (NT8-13) by manual Fmoc-SPSS.