Antimycobacterial activity of a series of pyrazinoic acid esters
作者:Michael H. Cynamon、Sally P. Klemens、Tso Sheng Chou、Rayomand H. Gimi、John T. Welch
DOI:10.1021/jm00085a007
日期:1992.4
A series of pyrazinoicacid esters has been prepared and evaluated for in vitro antimycobacterial activity. Several of the pyrazinoate esters have substantially better activity than the first-line antituberculous agent pyrazinamide against susceptible isolates of Mycobacterium turberculosis as well as activity against pyrazinamide-resistant isolates. The minimal inhibitory concentrations (MICs) were
[EN] ACCELERATED CATALYSIS OF OLEFINIC EPOXIDATIONS<br/>[FR] CATALYSE ACCELEREE DES EPOXYDATIONS OLEFINIQUES
申请人:——
公开号:WO1998033786A1
公开(公告)日:1998-08-06
[EN] Rhenium-catalyzed epoxidation of olefinic substrates is accelerated by the use of accelerants having a nitrogenous aromatic heterocyclic structure. Use of the accelerants also enables the use of aqueous hydrogen peroxide as an oxidant. To achieve optimum acceleration, the accelerant should have a concentration within a range from 2.0 mole percent to 100 mole percent of the accelerant with respect to 1 mole of the olefinic substrate. Use of the accelerant also results in an increased yield with respect to the conversion of the olefinic substrate to epoxide product. [FR] L'invention se rapporte à l'époxydation de substrats oléfiniques catalysée par le rhénium, qui est accélérée par des accélérateurs à structure hétérocyclique aromatique azotée. En outre, le recours à des accélérateurs permet d'utiliser en tant qu'oxydant le peroxyde d'hydrogène aqueux. Afin d'obtenir une accélération optimale, il faut que la concentration de l'accélérateur soit comprise comprise entre 2,0 et 100 moles d'accélérateur pour cent moles de substrat oléfinique. Le recours à l'accélérateur permet également d'assurer un rendement plus élevé en matière de conversion du substrat oléfinique en produit époxyde.
[EN] TUBERCULOSIS THERAPEUTIC COMPOUNDS AND METHODS<br/>[FR] COMPOSÉS ET MÉTHODES THÉRAPEUTIQUES CONTRE LA TUBERCULOSE
申请人:UNIV NORTH CAROLINA CHAPEL HILL
公开号:WO2018090004A2
公开(公告)日:2018-05-17
Therapeutic compounds and methods for treating tuberculosis are provided. Methods of treating tuberculosis include administering to a subject an inhalable formulation of pyrazinoic acid, in some instances as an adjunctive therapy. As disclosed herein, inhaled pyrazinoic acid compositions provide an antibacterial effect on tuberculosis infection in the lung as well as inducing host-directed effects against tuberculosis in the spleen or liver. Disclosed tuberculosis treatments can target primary granulomatous lesions, whereas existing tuberculosis therapies target secondary granulomatous lesions.