Mizoroki–Heck Cyclizations of Amide Derivatives for the Introduction of Quaternary Centers
作者:Jose M. Medina、Jesus Moreno、Sophie Racine、Shuaijing Du、Neil K. Garg
DOI:10.1002/anie.201703174
日期:2017.6
report non-decarbonylative Mizoroki–Heck reactions of amide derivatives. The transformation relies on the use of nickel catalysis and proceeds using sterically hindered tri- and tetrasubstituted olefins to give products containing quaternary centers. The resulting polycyclic or spirocyclic products can be obtained in good yields. Moreover, a diastereoselective variant of this method gives access to an
7-AMINO ALKYLIDENYL-HETEROCYCLIC QUINOLONES AND NAPHTHYRIDONES
申请人:Davis Benjamin
公开号:US20090156577A1
公开(公告)日:2009-06-18
The present invention relates to compounds having a structure according to Formula (I)
wherein n, m, z, R, R
2
, R
3
, R
4
, R
5
, R
6
, A, E, X, Y, a and b are as defined above; or an optical isomer, diastereomer or enantiomer thereof; a pharmaceutically acceptable salt, hydrate, or prodrug thereof.
作者:Eugene B. Grant、Barbara D. Foleno、Raul Goldschmidt、Jamese J. Hilliard、Shu-Chen Lin、Brian Morrow、Steven D. Paget、Michele A. Weidner-Wells、Xiaodong Xu、Xiaoqing Xu、William V. Murray、Karen Bush、Mark J. Macielag
DOI:10.1016/j.bmcl.2014.10.014
日期:2014.12
Novel antibacterial fluoroquinolone agents bearing a 4-alkylidenylpiperidine 7-position substituent are active against quinolone-susceptible and quinolone-resistant gram-positive bacteria, including Streptococcus pneumoniae and MRSA. Analogs 22b, 23c, and 24 demonstrated superior in vitro and in vivo efficacy to ciprofloxacin against these cocci. (C) 2014 Elsevier Ltd. All rights reserved.