Interrupted Polonovski Strategy for the Synthesis of Functionalized Amino Acids and Peptides
作者:Christine Marty、Emmanuelle M. D. Allouche、Jerome Waser
DOI:10.1021/acs.orglett.3c03603
日期:2024.1.19
hydroxylamine glycine derivatives, acting as imine surrogates via an interruptedPolonovski reaction, is described to access functionalizedaminoacid derivatives. The addition of C, N, O, and S nucleophiles was achieved in a one-pot procedure in 37% to 92% yield. This method could be extended to dipeptide derivatives for the functionalization of both the C-terminus and N-terminus.
氨基甲酸酯保护的羟胺甘氨酸衍生物的 α-官能化,通过中断的 Polonovski 反应充当亚胺替代物,被描述为获得官能化的氨基酸衍生物。 C、N、O 和 S 亲核试剂的添加通过一锅法实现,产率为 37% 至 92%。该方法可以扩展到二肽衍生物,以实现 C 端和 N 端的功能化。
N-Hydroxyglycine derivatives as novel inhibitors of squalene synthase
作者:Sompong Wattanasin、Brian R. Boettcher、Terry Scallen
DOI:10.1016/s0960-894x(97)10133-0
日期:1997.12
The squalene synthase inhibiting properties of farnesyl diphosphate (FPP) mimics, 3 and related analogues, are described. The results indicate that the nonphosphorus-containing N-hydroxyglycine is a novel replacement for the diphosphate group. Further optimization of 3 has led to 12, a new and potent squalene synthase inhibitor. (C) 1997 Elsevier Science Ltd.
Pd-Catalyzed Asymmetric Allylic Etherizations with Oximes by Chiral Alkene-Phosphine Ligands
作者:Ziping Cao、Zhaoqun Liu、Yilin Liu、Haifeng Du
DOI:10.1021/jo200925q
日期:2011.8.5
Palladium-catalyzed asymmetric allylic etherizations with a variety of mimes as nucleophiles utilizing a chiral alkene-phosphine hybrid ligand have been successfully achieved for the first time to afford the optical active oxime ethers in high yields with good to excellent enantioselectivities.
Nitrones as intermediates in the synthesis of N-hydroxyamino acid esters