Novel potent and selective calcium-release-activated calcium (CRAC) channel inhibitors. Part 2: Synthesis and inhibitory activity of aryl-3-trifluoromethylpyrazoles
摘要:
To identify potent and selective calcium-release-activated calcium (CRAG) channel inhibitors, we examined the structure-activity relationships of the pyrazole and thiophene moieties in compound 4. Compound 25b was found to exhibit highly potent and selective inhibitory activity for CRAC channels and further modifications of the pyrazole and benzoyl moieties of compound 25b produced compound 29. These compounds were potent inhibitors of IL-2 production in vitro and also acted as inhibitors in pharmacological models of diseases resulting from T-lymphocyte activation, after oral administration. (c) 2006 Elsevier Ltd. All rights reserved.
Anti-oligomerization sheet molecules: Design, synthesis and evaluation of inhibitory activities against α-synuclein aggregation
摘要:
Aggregation of alpha-synuclein (alpha-Syn) play a key role in the development of Parkinson Disease (PD). One of the effective approaches is to stabilize the native, monomeric protein with suitable molecule ligands. We have designed and synthesized a series of sheet-like conjugated compounds which possess different skeletons and various heteroatoms in the two blocks located at both ends of linker, which have good pi-electron delocalization and high ability of hydrogen-bond formation. They have shown anti-aggregation activities in vitro towards alpha-Syn with IC50 down to 1.09 mu M. The molecule is found binding in parallel to the NACore within NAC domain of alpha-Syn, interfering aggregation of NAC region within different alpha-Syn monomer, and further inhibiting or slowing down the formation of alpha-Syn oligomer nuclei at lag phase. The potential inhibitor obtained by our strategy is considered to be highly efficient to inhibit alpha-Syn aggregation.