Orally absorbable cephalosporin antibiotics. 2. Structure-activity studies of bicyclic glycine derivatives of 7-aminodeacetoxycephalosporanic acid
作者:Stjepan Kukolja、Susan E. Draheim、Bernard J. Graves、David C. Hunden、Janice L. Pfeil、Robin D. G. Cooper、John L. Ott、Fred T. Counter
DOI:10.1021/jm00150a023
日期:1985.12
Three positional analogues (4-, 5-, and 7-) of benzothienylglycine and (N-acetylindolinyl)-5-glycine were prepared and coupled to 7-aminodeacetoxycephalosporanic acid (7-ADCA) to give the cephalosporins 17a-c. In addition two isomeric (2,3-b and 3,2-b) thienothiopheneglycines were synthesized and coupled to 7-ADCA to yield cephalosporins 30d and 30e. In vitro testing of these new cephalosporins indicates good activity against Gram-positive bacteria. Against Streptococcus pneumoniae infections compound 25 displayed better mouse protection (both orally and subcutaneously) than cephalexin.
Synthesis and Biological Studies of Novel 2-Aminoalkylethers as Potential Antiarrhythmic Agents for the Conversion of Atrial Fibrillation
作者:Bertrand Plouvier、Gregory N. Beatch、Grace L. Jung、Alexander Zolotoy、Tao Sheng、Lilian Clohs、Terrance D. Barrett、David Fedida、Wei Q. Wang、Jeff J. Zhu、Yuzhong Liu、Shlomo Abraham、Leah Lynn、Ying Dong、Richard A. Wall、Michael J. A. Walker
DOI:10.1021/jm0604528
日期:2007.6.1
A series of 2-aminoalkylethers prepared as potentialantiarrhythmicagents is described. The present compounds are mixed sodium and potassium ion channel blockers and exhibit antiarrhythmic activity in a rat model of ischemia-induced arrhythmias. Structure-activity studies led to the identification of three compounds 5, 18, and 26, which were selected based on their particular in vivo electrophysiological