Selective Nitrile Inhibitors To Modulate the Proteolytic Synergism of Cathepsins S and F
摘要:
A series of dipeptide nitriles with different P3 substituents was designed to explore the S3 binding pocket of cathepsin S. Racemic 7-16 and the enantiopure derivative (R)-22 proved to be potent inhibitors of human cathepsin S and exhibited notable selectivity over human cathepsins L, K, and B. Inhibition of cathepsin F, the functional synergist of cathepsin S, was not observed. The azadipeptide analogue of 22, compound 26, was highly potent but nonselective.
Selective Nitrile Inhibitors To Modulate the Proteolytic Synergism of Cathepsins S and F
摘要:
A series of dipeptide nitriles with different P3 substituents was designed to explore the S3 binding pocket of cathepsin S. Racemic 7-16 and the enantiopure derivative (R)-22 proved to be potent inhibitors of human cathepsin S and exhibited notable selectivity over human cathepsins L, K, and B. Inhibition of cathepsin F, the functional synergist of cathepsin S, was not observed. The azadipeptide analogue of 22, compound 26, was highly potent but nonselective.
Redox-Neutral Photocatalytic C−H Carboxylation of Arenes and Styrenes with CO2
作者:Matthias Schmalzbauer、Thomas D. Svejstrup、Florian Fricke、Peter Brandt、Magnus J. Johansson、Giulia Bergonzini、Burkhard König
DOI:10.1016/j.chempr.2020.08.022
日期:2020.10
Carbondioxide (CO2) is an attractive one-carbon (C1) building block in terms of sustainability and abundance. However, its low reactivity limits applications in organic synthesis as typically high-energy reagents are required to drive transformations. Here, we present a redox-neutral C─H carboxylation of arenes and styrenes using a photocatalytic approach. Upon blue-light excitation, the anthrolate
Synthesis and Antimicrobial Evaluation of Nitazoxanide-Based Analogues: Identification of Selective and Broad Spectrum Activity
作者:T. Eric Ballard、Xia Wang、Igor Olekhnovich、Taylor Koerner、Craig Seymour、Joseph Salamoun、Michelle Warthan、Paul S. Hoffman、Timothy L. Macdonald
DOI:10.1002/cmdc.201000475
日期:2011.2.7
library composed of nitazoxanide‐based analogues was synthesized and assayed for increased antibacterial efficacy against the pyruvate–ferredoxin oxidoreductase (PFOR) using microorganisms Helicobacter pylori, Campylobacter jejuni and Clostridium difficile. Derivatives were found to recapitulate and improve activity against these organisms and select analogues were tested for their ability to disrupt
Disclosed are compounds of the formula
1
wherein the variables R
N
, R
C
, R
1
, R
25
, R
2
, and R
3
are as defined herein. These compounds have activity as inhibitors of beta-secretase and are therefore useful in treating a variety of discorders such as Alzheimer's Disease.
The present invention relates to a melanin concentrating hormone antagonist compound of formula (I); wherein Ar
1
, L
1
, R
1
, q, X, R
2
, R
3
, R
4
, and R
5
are as defined, or a pharmaceutically acceptable salt, solvate, or enantiomer thereof useful in the treatment, prevention or amelioration of symptoms associated with obesity and related diseases.