15903-94-3Relevant articles and documents
Total Synthesis of Bruceolline i
Scarpi, Dina,Faggi, Cristina,Occhiato, Ernesto G.
, p. 2384 - 2388 (2017)
The first total synthesis of the natural product bruceolline I, isolated in small quantities from the ethanol extract of Brucea mollis stems, was achieved in 29% yield over nine steps and with high enantiomeric purity (>98%). The key step of the process i
Indolyl Azaspiroketal Mannich Bases Are Potent Antimycobacterial Agents with Selective Membrane Permeabilizing Effects and in Vivo Activity
Nyantakyi, Samuel Agyei,Li, Ming,Gopal, Pooja,Zimmerman, Matthew,Dartois, Véronique,Gengenbacher, Martin,Dick, Thomas,Go, Mei-Lin
supporting information, p. 5733 - 5750 (2018/06/20)
The inclusion of an azaspiroketal Mannich base in the membrane targeting antitubercular 6-methoxy-1-n-octyl-1H-indole scaffold resulted in analogs with improved selectivity and submicromolar activity against Mycobacterium tuberculosis H37Rv. The potency enhancing properties of the spiro-fused ring motif was affirmed by SAR and validated in a mouse model of tuberculosis. As expected for membrane inserting agents, the indolyl azaspiroketal Mannich bases perturbed phospholipid vesicles, permeabilized bacterial cells, and induced the mycobacterial cell envelope stress reporter promoter piniBAC. Surprisingly, their membrane disruptive effects did not appear to be associated with bacterial membrane depolarization. This profile was not uniquely associated with azaspiroketal Mannich bases but was characteristic of indolyl Mannich bases as a class. Whereas resistant mycobacteria could not be isolated for a less potent indolyl Mannich base, the more potent azaspiroketal analog displayed low spontaneous resistance mutation frequency of 10-8/CFU. This may indicate involvement of an additional envelope-related target in its mechanism of action.
Structure-based de novo design, synthesis, and biological evaluation of the indole-based PPARγ ligands (I)
Dong, Xiaochun,Zhang, Zhenshan,Wen, Ren,Shen, Jianhua,Shen, Xu,Jiang, Hualiang
, p. 5913 - 5916 (2007/10/03)
MCSS and LeapFrog, two de novo drug design programs, were used for the novel indole-based PPARγ ligands' study. The designed compounds were synthesized and tested for the PPARγ protein binding activities in vitro. Out of the compounds that were synthesize