Anti acid-fast bacterial agent containing pyridonecarboxylic acids as active ingredient
申请人:——
公开号:US20030119848A1
公开(公告)日:2003-06-26
1
Anti-acid-fast bacterial agents containing as the active ingredient compounds represented by the general formula (1), salts thereof or hydrates of the same. Namely, pyridonecarboxylic acid derivatives having an excellent antibacterial activity on tubercle bacillus and a typical acid-fast bacteria, favorable kinetics in vivo and a high safety.
Intramolecular Aza-Wittig Reaction: A New Efficient Tool for the Construction of Piperazine 2,5-Dione Derivatives
作者:K. Majumdar、Krishanu Ray、Sintu Ganai
DOI:10.1055/s-0030-1258519
日期:2010.9
A new efficient approach for the synthesis of unsymmetricaly substituted piperazine 2,5-dione derivatives is described by using intramolecular aza-Wittig reaction as the key step. The reaction conditions are very simple, offer easy isolation, and excellent yields of the products.