The invention provides novel imidazopyrazine derivatives having the general formula (I), wherein Rx and R3 to R5 are as described herein (formula (I)) or pharmaceutically acceptable salts thereof. Further provided are pharmaceutical compositions including the compounds, processes of manufacturing the compounds and methods of using the compounds as medicaments, in particular methods of using the compounds as antibiotics for the treatment or prevention of bacterial infections and resulting diseases.
[EN] BORONIC ACID DERIVATIVES AND THERAPEUTIC USES THEREOF<br/>[FR] DÉRIVÉS D'ACIDE BORONIQUE ET LEURS UTILISATIONS THÉRAPEUTIQUES
申请人:REMPEX PHARMACEUTICALS INC
公开号:WO2016149393A1
公开(公告)日:2016-09-22
Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the use and preparation thereof. Some embodiments relate to boronic acid derivatives and their use as therapeutic agents.
Kinetic or Dynamic Control on a Bifurcating Potential Energy Surface? An Experimental and DFT Study of Gold-Catalyzed Ring Expansion and Spirocyclization of 2-Propargyl-β-tetrahydrocarbolines
control the selectivity is still not fully examined. This missing link in transition state theory is founded in the present study. Aiming to develop new methods for the synthesis of azocinoindole derivatives, we found that 2-propargyl-β-tetrahydrocarbolines can undergo ring expansion and spirocyclization under gold catalysis. DFT study revealed that the reaction starts with the intramolecular cyclization
The Invention comprises a compound characterized by a general formula (1),
R
L
—OM-R
R
(1)
wherein OM is an organometallic compound independently selected from the group of an unsubstituted or substituted metal sandwich compound, an unsubstituted or substituted half metal sandwich compound or a metal carbonyl compound, and wherein at least one of R
L
and R
R
is selected from
and their use for in a method of treatment of disease, in particular their use against helminths.
Steroidal bivalent ligands were designed on the basis of the described closer proximity of the ATP-site and the putative steroid-binding site of P-glycoprotein (ABCB1). The syntheses of seven progesterone-adenine hybrids were described. Their abilities to inhibit P-glycoprotein-mediated daunorubicin efflux in K562/R7 human leukemic cells overexpressing P-glycoprotein were evaluated versus progesterone. (C) 2010 Elsevier Ltd. All rights reserved.