Catalytic C(sp
<sup>3</sup>
)−H Arylation of Free Primary Amines with an
<i>exo</i>
Directing Group Generated In Situ
作者:Yan Xu、Michael C. Young、Chengpeng Wang、David M. Magness、Guangbin Dong
DOI:10.1002/anie.201604268
日期:2016.7.25
Herein, we report the palladium‐catalyzeddirectarylation of unactivated aliphatic C−H bonds in free primary amines. This method takes advantage of an exo‐imine‐type directing group (DG) that can be generated and removed in situ. A range of unprotected aliphatic amines are suitable substrates, undergoing site‐selective arylation at the γ‐position. Methyl as well as cyclic and acyclic methylene groups
Syntheses and Neuraminidase Inhibitory Activity of Multisubstituted Cyclopentane Amide Derivatives
作者:Pooran Chand、Y. Sudhakar Babu、Shanta Bantia、Scott Rowland、Ali Dehghani、Pravin L. Kotian、Tracy L. Hutchison、Shoukath Ali、Wayne Brouillette、Yahya El-Kattan、Tsu-Hsing Lin
DOI:10.1021/jm0303406
日期:2004.4.1
position 3, were tested for their ability to inhibit A and B forms of influenza neuraminidase. The 1-ethylpropylamide, diethylamide, dipropylamide, and 4-morpholinylamide showed very good inhibitoryactivity (IC(50) = 0.015-0.080 microM) vs the neuraminidase A form, but modest activity (IC(50) = 3.0-9.2 microM) vs the neuraminidase B form. Since the parent amides bear two chiral centers (C-1 and C-1'), three
The present invention features compounds that are HIV integrase inhibitors and therefore are useful in the inhibition of HIV replication, the prevention and/or treatment of infection by HIV, and in the treatment of AIDS and/or ARC.
Enantioselective γ-C(sp<sup>3</sup>)–H Activation of Alkyl Amines via Pd(II)/Pd(0) Catalysis
作者:Qian Shao、Qing-Feng Wu、Jian He、Jin-Quan Yu
DOI:10.1021/jacs.8b01094
日期:2018.4.25
Pd(II)-catalyzed enantioselective γ-C(sp3)-H cross-coupling of alkyl amines via desymmetrization and kinetic resolution has been realized for the first time using chiral acetyl-protected aminomethyl oxazoline ligands (APAO). A diverse range of aryl- and vinyl-boron reagents can be used as coupling partners. The chiral γ-arylated alkylamine products are further transformed into chiral 2-substituted 1,2,3,4-