134994-15-3Relevant academic research and scientific papers
Toward analogues of MraY natural inhibitors: Synthesis of 5′-triazole-substituted-aminoribosyl uridines through a Cu-catalyzed azide-alkyne cycloaddition
Fer, Mickael J.,Olatunji, Samir,Bouhss, Ahmed,Calvet-Vitale, Sandrine,Gravier-Pelletier, Christine
, p. 10088 - 10105 (2013)
A straightforward strategy for the synthesis of triazole-containing MraY inhibitors has been developed. It involves the sequential introduction of a terminal alkyne at the 5′ position of an uridine derivative and O-glycosylation with a protected aminoribose leading to an elaborated alkyne scaffold. An efficient Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) allowed the introduction of chemical diversity toward a small library of inhibitors.
Efficacy of novel phenoxyalkyl pyridinium oximes as brain-penetrating reactivators of cholinesterase inhibited by surrogates of sarin and VX
Chambers, Janice E.,Chambers, Howard W.,Funck, Kristen E.,Meek, Edward C.,Pringle, Ronald B.,Ross, Matthew K.
, p. 154 - 159 (2016/12/06)
Pyridinium oximes are strong nucleophiles and many are effective reactivators of organophosphate-inhibited cholinesterase (ChE). However, the current oxime reactivators are ineffective at crossing the blood-brain barrier and reactivating brain ChE in the intact organism. Our laboratories have developed a series of substituted phenoxyalkyl pyridinium oximes (US patent 9,227,937 B2) with the goal of identifying reactivators effective in crossing the blood-brain barrier. The first 35 of the series were found to have similar in?vitro efficacy as reactivators of ChE inhibited by a sarin surrogate (phthalimidyl isopropyl methylphosphonate, PIMP) or a VX surrogate (nitrophenyl ethyl methylphosphonate, NEMP) in bovine brain preparations as previously observed in rat brain preparations. A number of these novel oximes have shown the ability to decrease the level of ChE inhibition in the brains of rats treated with a high sublethal dosage of either a sarin surrogate (nitrophenyl isopropyl methylphosphonate, NIMP) or the VX surrogate NEMP. Levels of reactivation at 2?h after oxime administration were up to 35% while the currently approved therapeutic, 2-PAM, yielded no reduction in brain ChE inhibition. In addition, there was evidence of attenuation of seizure-like behavior with several of the more effective novel oximes, but not 2-PAM. Therefore these novel oximes have demonstrated an ability to reactivate inhibited ChE in brain preparations from two species and in?vivo data support their ability to enter the brain and provide a therapeutic action. These novel oximes have the potential to be developed into improved antidotes for nerve agent therapy.
Substituted aminoalkoxybenzene anti-fungicidal compositions and use
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, (2008/06/13)
The compound of the formula STR1 wherein each of R1 and R2 individually is hydrogen, lower alkyl or lower alkenyl or together signify straight-chain alkylene with 2 to 4 carbon atoms, R3 is hydrogen, halogen or lower alkyl, Q is alkylene with 4 to 11 carbon atoms and at least 4 carbon atoms between the two free valencies or alkenylene with 4 to 11 carbon atoms and at least 4 carbon atoms between the two free valencies and each of Y and Y' individually is a direct bond or the group --CH2 --, --CH2 CH2 --, --CH=CH-- or --C C--, the group R1 R2 N--Q--O-- is attached to the 3- or 4 -position of ring A and the symbol R designates that the ring to which it is attached is unsubstituted or is substituted with at least one substitutent selected from the group consisting of halogen, trifluoromethyl, cyano, nitro, lower alkyl and lower alkoxy, and their pharmaceutically acceptable acid addition salts can be used for the control or prevention of fungal infections, especially of topical or systemic infections which are caused by pathogenic fungi, and for the manufacture of antifungally-active medicaments. The compounds of formula I have not only a pronounced antifungal activity, but they also exhibit synergistic effects in combination with other known antifungally-active substances which inhibit sterol biosynthesis such as ketoconazole and terbinafine.
