A series of novel cyclic amine-substituted benzoic acid derivatives were synthesized and evaluated for their PPARα agonist activity. Strucure-activity relationship studies led to the identification of (S)-3-[3-[2-(4-chlorophenyl)-4-methylthyazole-5-carboxamido]piperidin-1-yl]benzoic acid (S)-4f (KRP-105) as a potent and high subtype-selective human PPARα agonist. (S)-4f showed excellent PK profile and oral administration of (S)-4f to high-fat diet dogs effectively lowered triglycerides.
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http://dx.doi.org/10.1016/j.bmcl.2011.11.002 | DOI Listing |
Chem Asian J
May 2019
Department of Chemistry, University of Virginia, Charlottesville, VA, 22904, USA.
Emissive β-diketones (bdks) and difluoroboron complexes (BF bdks) show multi-stimuli responsive luminescence in both solution and the solid state. A series of bdk ligands and boron coordinated dyes were synthesized with different cyclic amine substituents in the 4-position to explore ring size effects on various luminescent properties, including solvatochromism, viscochromism, aggregation-induced emission (AIE), mechanochromic luminescence (ML) and halochromism. Red-shifted absorption and emission were observed in CH Cl for both bdk ligands and boron dyes with increasing substituent ring size.
View Article and Find Full Text PDFAcc Chem Res
September 2015
Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.
Titanium, as the second most abundant transition metal in the earth's crust, lends itself as a sustainable and inexpensive resource in catalysis. Its nontoxicity and biocompatibility are also attractive features for handling and disposal. Titanium has excelled as a catalyst for a broad range of transformations, including ethylene and α-olefin polymerizations.
View Article and Find Full Text PDFOrg Lett
June 2015
School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland.
A new series of selectively dichlorinated and dibrominated five- to eight-membered-ring [1,2-a]-fused benzimidazoles and [1,4]oxazino[4,3-a]benzimidazoles are synthesized in mostly high yields of >80% using the reaction of hydrogen peroxide and hydrohalic acid with commercially available o-cyclic amine substituted anilines. Domestic bleach with HCl can also be used for a one-pot ring closure and chlorination.
View Article and Find Full Text PDFNanoscale
April 2015
Polymer Science Unit, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, India-700032.
Herein we reveal a straightforward supramolecular design for the H-bonding driven J-aggregation of an amine-substituted cNDI in aliphatic hydrocarbons. Transient absorption spectroscopy reveals sub-ps intramolecular electron transfer in isolated NDI molecules in a THF solution followed by a fast recombination process, while a remarkable extension of the excited state lifetime by more than one order of magnitude occurred in methylcyclohexane likely owing to an increased charge-separation as a result of better delocalization of the charge-separated states in J-aggregates. We also describe unique solvent-effects on the macroscopic structure and morphology.
View Article and Find Full Text PDFSteroids
July 2014
School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China; New Drug Research & Development Center, Zhengzhou University, Zhengzhou 450001, China. Electronic address:
Novel C6-cyclo secondary amine substituted purine steroid-nucleoside analogues (2-9) were efficiently synthesized through displacement of the C6 chloro on the purine ring of series 1 with versatile cyclic secondary amines, including pyrrolidines, piperidine, morpholine, and piperazines. All the newly-synthesized compounds were evaluated for their anticancer activity in vitro against Hela, PC-3 and MCF-7 cell lines. Among them, compounds 5c and 6b exhibited significant cytotoxicity on PC-3 cell lines.
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