NMR Spectroscopy and Theoretical Calculations in the Conformational Analysis of 1-Methylpyrrolidin-2-one 3-Halo-derivatives
作者:Ulisses Zonta de Melo、Raí G. M. Silva、Diego A. S. Yamazaki、Rodrigo M. Pontes、Gisele F. Gauze、Fernanda A. Rosa、Roberto Rittner、Ernani A. Basso
DOI:10.1021/jp512378g
日期:2015.3.12
pseudo-axial and a pseudo-equatorial. In the gaseous phase, the calculations indicate that the pseudo-axial conformer is more stable and preferable going down the halogen family. Natural bond orbital analysis showed that electronic delocalization is significant only for the iodo derivative. In the other derivatives, the electrostatic repulsion between oxygen and the halogen determines the conformational
Tricyclic 6-Alkylidene-Penems as Beta-Lactamase Inhibitors
申请人:Venkatesan Aranapakam Mudumbai
公开号:US20080318921A1
公开(公告)日:2008-12-25
The present invention provides a compound of formula I, pharmaceutical compositions and the use thereof for the treatment of bacterial infection or disease in a patient in need thereof.
本发明提供了一种I式化合物、药物组合物及其在治疗需要治疗细菌感染或疾病的患者中的用途。
Rapid and Catalyst‐Free α‐Halogenation of Ketones using<i>N</i>‐Halosuccinamides in DMSO