1583-76-2Relevant articles and documents
Polyfluoroaralkylamines: an improved synthesis of 4,5,6,7-tetrafluoroindole
Filler, Robert,Chen, Wei,Woods, Sarah M.
, p. 95 - 100 (1995)
Tetrafluoroindole (5), a precursor for potential biologically-active compounds, was prepared previously in a four-step synthesis from C6F6.However, catalytic reduction of pentafluorophenylacetonitrile (2) to 2-pentafluorophenylethyl amine (3) is accompanied by a significant amount of a secondary amine, which, like 3, undergoes cyclization to an indoline and subsequent dehydrogenation to a new indole 8.The side-reaction in the reduction of 2 to 3 is obviated by the use of LiAlH4/AlCl3 (1:1).The final aromatization to yield 5 is vastly improved by replacing MnO2 with DDQ. - Keywords: Polyfluoroaralkylamines; Synthesis; Tetrafluoroindole; NMR spectroscopy; IR spectroscopy
Development of 3-(4-Chlorophenyl)-1-(phenethyl)urea Analogues as Allosteric Modulators of the Cannabinoid Type-1 Receptor: RTICBM-189 is Brain Penetrant and Attenuates Reinstatement of Cocaine-Seeking Behavior
Barrus, Daniel,Decker, Ann M.,Finlay, David B.,Gamage, Thomas F.,Glass, Michelle,Kenakin, Terry P.,Langston, Tiffany L.,Li, Jun-Xu,Nguyen, Thuy,Zhang, Yanan
, (2022/01/03)
We have shown that CB1 receptor negative allosteric modulators (NAMs) attenuated the reinstatement of cocaine-seeking behaviors in rats. In an effort to further define the structure-activity relationships and assess the druglike properties of the 3-(4-chlorophenyl)-1-(phenethyl)urea-based CB1 NAMs that we recently reported, we introduced substituents of different electronic properties and sizes to the phenethyl group and evaluated their potency in CB1 calcium mobilization, cAMP, and GTPγS assays. We found that 3-position substitutions such as Cl, F, and Me afforded enhanced CB1 potency, whereas 4-position analogues were generally less potent. The 3-chloro analogue (31, RTICBM-189) showed no activity at >50 protein targets and excellent brain permeation but relatively low metabolic stability in rat liver microsomes. Pharmacokinetic studies in rats confirmed the excellent brain exposure of 31 with a brain/plasma ratio Kp of 2.0. Importantly, intraperitoneal administration of 31 significantly and selectively attenuated the reinstatement of the cocaine-seeking behavior in rats without affecting locomotion.
N,N'-BIS(FLUOROPHENYLALKYL)-SUBSTITUTED PERYLENE-3,4:9,10-TETRACARBOXIMIDES, AND THE PREPARATION AND USE THEREOF
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Page/Page column 24, (2009/10/22)
The present invention relates to N,N'-bis(fluorophenylalkyl)-substituted perylene- 3,4:9,10-tetracarboximides, their preparation and their use as charge transport materials, exciton transport materials or emitter materials formula (I).