Site-Selective γ-C(sp<sup>3</sup>)−H and γ-C(sp<sup>2</sup>)−H Arylation of Free Amino Esters Promoted by a Catalytic Transient Directing Group
作者:Hua Lin、Chao Wang、Thomas D. Bannister、Theodore M. Kamenecka
DOI:10.1002/chem.201802465
日期:2018.7.5
The first selective PdII‐catalysed γ‐C(sp3)−H and γ‐C(sp2)−H arylation of free amino esters using a commercially available catalytic transient directing group. A variety of free amino esters, including α‐amino esters and β‐amino esters, amino monoesters and amino bis‐esters, are shown to react with a diverse range of simple aryl and heteroaryl iodide reagents.
Native amine-directed site-selective C(sp3)-H arylation of primary aliphatic amines with aryl iodides
作者:Pranab K. Pramanick、Zhibing Zhou、Zhenlin Hou、Yufei Ao、Bo Yao
DOI:10.1016/j.cclet.2019.10.034
日期:2020.5
N-unprotected aliphaticamines represents one of the most efficient and straightforward strategies for amine synthesis. Despite some recent progress in this field, the NH2-directed γ-C(sp3)-H arylation of primaryaliphaticamines except α-amino esters remained an unmet challenge. In this report, we established a simple and efficient method for site-selective C(sp3)-H arylation of primaryaliphaticamines by aryl
Free Amino Group-Directed γ-C(sp<sup>3</sup>)–H Arylation of α-Amino Esters with Diaryliodonium Triflates by Palladium Catalysis
作者:Pranab K. Pramanick、Zhibing Zhou、Zhen-Lin Hou、Bo Yao
DOI:10.1021/acs.joc.9b00605
日期:2019.5.3
Free amino group-directed C(sp3)–H functionalization of aliphatic amines is a fundamental challenge in synthetic organic chemistry. Also, the NH2-directed C(sp3)–H functionalization of α-amino acids and their derivatives remains barely explored. With palladium as the catalyst and Ag2O as the additive, we developed the first NH2-directed γ-C(sp3)–Harylation of α-amino esters with diaryliodonium triflates
DESAZADESFERROTHIOCIN ANALOGUES AS METAL CHELATION AGENTS
申请人:FerroKin BioSciences, Inc.
公开号:US20150259306A1
公开(公告)日:2015-09-17
Disclosed herein are new compounds of desazadesferrothiocin polyether (DADFT-PE) analogues, as well as pharmaceutical compositions comprising them and their application as metal chelation agents for the treatment of disease. Methods of chelation of iron and other metals in a human or animal subject are also provided for the treatment of metal overload and toxicity.