Synthesis, modeling and functional activity of substituted styrene-amides as small-molecule CXCR7 agonists
摘要:
The chemokine receptor CXCR7 is an atypical G protein-coupled receptor as it preferentially signals through the beta-arrestin pathway rather than through G proteins. CXCR7 is thought to be of importance in cancer and the development of CXCR7-targeting ligands is of huge importance to further elucidate the pharmacology and the therapeutic potential of CXCR7. In the present study, we synthesized 24 derivatives based on a compound scaffold patented by Chemocentryx and obtained CXCR7 ligands with pK(i) values ranging from 5.3 to 8.1. SAR studies were supported by computational 3D Fingerprint studies, revealing several important affinity descriptors. Two key compounds (29 and 30, VUF11207 and VUF11403) were found to be high-potency ligands that induce recruitment of beta-arrestin2 and subsequent internalization of CXCR7, making them important tool compounds in future CXCR7 research. (C) 2012 Elsevier Masson SAS. All rights reserved.
Lewis Acid Triggered Vinylcyclopropane–Cyclopentene Rearrangement
作者:Olga A. Ivanova、Alexey O. Chagarovskiy、Alexey N. Shumsky、Vasiliy D. Krasnobrov、Irina I. Levina、Igor V. Trushkov
DOI:10.1021/acs.joc.7b02351
日期:2018.1.19
donor–acceptor cyclopropanes, containing an alkenyl moiety and diverse electron-withdrawinggroup(s) at the adjacent positions, into substituted cyclopentenes. We have found that 1,1,2-trisubstituted cyclopent-3-enes were exclusively obtained in yield of 51–99% when cyclopropanes with a 2-substituted alkenyl group as a donor underwent isomerization. For cyclopropanes bearing a trisubstituted alkenyl group either
1-(2-Substituted-hydrazino)-3,4-dihydroisoquinolines, prepared in one process by alkylating the corresponding 3,4-dihydroisocarbostyrils, hydrazinolyzing the resulting 1-alkoxy-3,4-dihydroisoquinolines and condensing the resulting 1-hydrazIno-3,4-dihydroisoquinolines with aldehydes or ketones, and 1,1'-azinobis(1,2,3,4-tetrahydroisoquinolines), prepared by condensing corresponding 1-alkoxy-3,4-dihydroisoquinolines and 1-hydrazino-3,4-dihydroisoquinolines, are useful as antihypertensive agents and/or as antiinflammatory agents.
4,5-Diaryl-.alpha.-(polyfluoroalkyl)-1H-pyrrole-2-methanamines such as 4,5-bis(4-fluorophenyl)-.alpha..alpha.-bis-(trifluoromethyl)-1H-pyrrole-2- methanamine, useful in treatment of inflammation.
C–H functionalization of cyclic amines: redox-annulations with α,β-unsaturated carbonyl compounds
作者:YoungKu Kang、Matthew T. Richers、Conrad H. Sawicki、Daniel Seidel
DOI:10.1039/c5cc03390j
日期:——
Cyclic amines such as pyrrolidine and 1,2,3,4-tetrahydroisoquinoline undergo redox-annulations with [small alpha],[small beta]-unsaturated aldehydes and ketones. Carboxylic acid promoted generation of a conjugated azomethine ylide is followed by 6[small pi]-electrocylization, and, in some...
4,5-Diaryl-.alpha.,.alpha.-bis(polyfluoromethyl)-1H-pyrrole-2-methanethiols , such as 4,5-bis(4-fluorophenyl)-.alpha., .alpha.-bis(trifluoromethyl)-1H-pyrrole-2-methanethiol, useful in treatment of inflammation.