1154415-33-4Relevant academic research and scientific papers
Understanding Flavin-Dependent Halogenase Reactivity via Substrate Activity Profiling
Andorfer, Mary C.,Grob, Jonathan E.,Hajdin, Christine E.,Chael, Julia R.,Siuti, Piro,Lilly, Jeremiah,Tan, Kian L.,Lewis, Jared C.
, p. 1897 - 1904 (2017)
The activity of four native FDHs and four engineered FDH variants on 93 low-molecular-weight arenes was used to generate FDH substrate activity profiles. These profiles provided insights into how substrate class, functional group substitution, electronic activation, and binding affect FDH activity and selectivity. The enzymes studied could halogenate a far greater range of substrates than have been previously recognized, but significant differences in their substrate specificity and selectivity were observed. Trends between the electronic activation of each site on a substrate and halogenation conversion at that site were established, and these data, combined with docking simulations, suggest that substrate binding can override electronic activation even on compounds differing appreciably from native substrates. These findings provide a useful framework for understanding and exploiting FDH reactivity for organic synthesis.
Cystobactamid 507: Concise Synthesis, Mode of Action, and Optimization toward More Potent Antibiotics
Elgaher, Walid A. M.,Hamed, Mostafa M.,Baumann, Sascha,Herrmann, Jennifer,Siebenbürger, Lorenz,Krull, Jana,Cirnski, Katarina,Kirschning, Andreas,Br?nstrup, Mark,Müller, Rolf,Hartmann, Rolf W.
, p. 7219 - 7225 (2020)
Lack of new antibiotics and increasing antimicrobial resistance are among the main concerns of healthcare communities nowadays, and these concerns necessitate the search for novel antibacterial agents. Recently, we discovered the cystobactamids—a novel natural class of antibiotics with broad-spectrum antibacterial activity. In this work, we describe 1) a concise total synthesis of cystobactamid 507, 2) the identification of the bioactive conformation using noncovalently bonded rigid analogues, and 3) the first structure–activity relationship (SAR) study for cystobactamid 507 leading to new analogues with high metabolic stability, superior topoisomerase IIA inhibition, antibacterial activity and, importantly, stability toward the resistant factor AlbD. Deeper insight into the mode of action revealed that the cystobactamids employ DNA minor-groove binding as part of the drug–target interaction without showing significant intercalation. By designing a new analogue of cystobactamid 919-2, we finally demonstrated that these findings could be further exploited to obtain more potent hexapeptides against Gram-negative bacteria.
EQUILIBRATIVE NUCLEOSIDE TRANSPORTER ENT1 INHIBITORS
-
Page/Page column 47-48, (2009/06/27)
The present invention is related to novel compounds of formula (I) having equilibrative nucleoside transporter ENTl inhibiting properties, pharmaceutical compositions comprising these compounds, chemical processes for preparing these compounds and their use in the treatment of diseases linked to the inhibition of ENTl receptors in animals, in particular humans.
