作者:Ravikrishna Vallakati、Abel T. Plotnikov、Ryan A. Altman
DOI:10.1016/j.tet.2019.02.054
日期:2019.4
Herein, we report a practical synthesis of 2-D-l-tryptophan via sequential Ir-catalyzed CH borylation, and Ir-catalyzed C-2-deborylative deuteration steps. In this synthetic sequence, deprotection of the Boc and methyl ester groups proved challenging, due to replacement of deuterium with hydrogen. However, mild deprotection conditions were developed to avoid this D/H scrambling. Further, 2-D-L-Tryptophan
在本文中,我们报道了2-D-的实用合成升色氨酸通过顺序铱催化的Ç ħ硼化和Ir催化的C-2-deborylative氘化步骤。在该合成序列中,由于氘被氢取代,Boc和甲酯基团的脱保护被证明具有挑战性。然而,开发了温和的脱保护条件以避免这种D / H加扰。此外,2-D-大号-色氨酸在用于生物学研究的许多缓冲剂稳定。