Development of Novel Vitamin D Receptor–Coactivator Inhibitors
作者:Preetpal S. Sidhu、Nicholas Nassif、Megan M. McCallum、Kelly Teske、Belaynesh Feleke、Nina Y. Yuan、Premchendar Nandhikonda、James M. Cook、Rakesh K. Singh、Daniel D. Bikle、Leggy A. Arnold
DOI:10.1021/ml400462j
日期:2014.2.13
Nuclear receptor coregulators are master regulators of transcription and selectively interact with the vitamin D receptor (VDR) to modulate cell differentiation, cell proliferation, and calcium homeostasis. Herein, we report the syntheses and evaluation of highly potent and selective VDR-coactivator inhibitors based on a recently identified 3-indolylmethanamine scaffold. The most active compound, PS121912, selectively inhibited VDR-mediated transcription among eight other nuclear receptors tested. PS121912 is also selectively disrupting the binding between VDR and the third nuclear receptor interaction domain of the coactivator SRC2. Genetic studies revealed that PS121912 behaves. like a VDR antagonist by repressing 1,25-(OH)(2)D-3 activated gene transcription. In addition, PS121912 induced apoptosis in HL-60.
Activated Anilide in Heterocyclic Synthesis: Synthesis of New Dihydropyridines, Dihydropyridazines and Thiourea Derivatives
作者:Ibrahim S. A. Hafiz、Mahmoud M. M. Ramiz、Ahmed A. M. Sarhan
DOI:10.1002/cjoc.201190216
日期:2011.6
A series of new dihydropyridines, butanamide, dihydropyridazines and thiourea derivatives have been prepared through the reactions of 3‐aminopyridine (1) and N‐(pyridin‐3‐yl)‐3‐(pyridin‐3‐ylimino)butanamide 3 with some electrophilic reagents, aryl diazonium salts and isothiocyanates. Elementary analysis, MS, IR, and 1H NMR spectra confirmed the identity of the products.
通过3-氨基吡啶(1)和N-(吡啶-3-基)-3-(吡啶-3-氨基)丁酰胺3与一些亲电子的反应,制备了一系列新的二氢吡啶,丁酰胺,二氢哒嗪和硫脲衍生物。试剂,芳基重氮盐和异硫氰酸盐。元素分析,MS,IR和1 H NMR光谱证实了产物的身份。