79069-15-1Relevant articles and documents
Iterative Synthesis of Stereo- and Sequence-Defined Polymers via Acid-Orthogonal Deprotection Chemistry
He, Wenjing,Li, Maosheng,Tao, Youhua,Wang, Shixue,Wang, Xianhong
supporting information, (2022/01/20)
Absolute control over polymer stereo- and sequence structure is highly challenging in polymer chemistry. Here, an acid-orthogonal deprotection strategy is proposed for the iterative synthesis of a family of unimolecular polymers starting with enantiopure
TRICYCLIC 2-QUINOLINONES AS ANTIBACTERIALS
-
Paragraph 00225; 00226, (2018/11/26)
This invention is in the field of medicinal chemistry and relates to compounds, and pharmaceutical compositions thereof that are useful as antibacterial agents. The compounds are useful as inhibitors of bacterial gyrase activity and of bacterial infections, and have the structure of Formula (I): as further described herein. The invention further provides pharmaceutical compositions comprising a compound of Formula (I) and methods of using the compounds and compositions to treat bacterial infections.
Synthesis of Enantiomerically Pure 3-Substituted Piperazine-2-acetic Acid Esters as Intermediates for Library Production
Reddy Guduru, Shiva Krishna,Chamakuri, Srinivas,Raji, Idris O.,MacKenzie, Kevin R.,Santini, Conrad,Young, Damian W.
, p. 11777 - 11793 (2018/09/27)
The piperazine heterocycle is broadly exploited in FDA-approved drugs and biologically active compounds, but its chemical diversity is usually limited to ring nitrogen substitutions, leaving the four carbon atoms underutilized. Using an efficient six-step synthesis, chiral amino acids were transformed into 3-substituted piperazine-2-acetic acid esters as diastereomeric mixtures whose cis and trans products (dr 0.56 a? 2.2:1, respectively) could be chromatographically separated. From five amino acids (both antipodes) was obtained a complete matrix of 20 monoprotected chiral 2,3-disubstituted piperazines, each as a single absolute stereoisomer, all but one in multigram quantities. In keeping with our overall purpose of constructing more Csp3-enriched compound libraries for drug discovery, these diverse and versatile piperazines can be functionalized on either nitrogen atom, allowing them to be used as scaffolds for parallel library synthesis and as intermediates for the production of novel piperazine compounds.