A simple deprotection of triflate esters of phenol derivatives
摘要:
Efficient conversion of aryl triflates into the corresponding phenols has been accomplished with Et4NOH. In contrast to other cleavage reactions, such functional groups as nitro, ketone, halogen, amide and sulfonamide groups were intact under the reaction conditions. This mild removal of the trifluoromethanesulfonyl group would serve a new protecting group of phenols. (C) 2004 Elsevier Ltd. All rights reserved.
5-{2-[4-(2-Methyl-5-quinolinyl)-1-piperazinyl]ethyl}-2(1H)-quinolinones and 3,4-dihydro-2(1H)-quinolinones: Dual-acting 5-HT1 receptor antagonists and serotonin reuptake inhibitors. Part 3
作者:Steven M. Bromidge、Roberto Arban、Barbara Bertani、Manuela Borriello、Anna-Maria Capelli、Romano Di-Fabio、Stefania Faedo、Massimo Gianotti、Laurie J. Gordon、Enrica Granci、Alessandra Pasquarello、Simone K. Spada、Angela Worby、Laura Zonzini、Valeria Zucchelli
DOI:10.1016/j.bmcl.2010.09.085
日期:2010.12
5-2-[4-(2-Methyl-5-quinolinyl)-1-piperazinyl]ethyl}-2(1H)-quinolinones and 3,4-dihydro-2(1H)-quinolinones have been identified with different combinations of 5-HT1 autoreceptor antagonist and hSerT potencies and excellent rat PK profiles. The availability of tool compounds with a range of profiles at targets known to play a key role in the control of synaptic 5-HT levels will allow exploration of
[EN] CALCIUM RECEPTOR MODULATING ARYLALKYLAMINES<br/>[FR] ARYLALKYLAMINES MODULANT UN RECEPTEUR CALCIQUE
申请人:AMGEN INC
公开号:WO2003099776A1
公开(公告)日:2003-12-04
The compounds of the invention are represented by the following general structure (I) or a pharmaceutically acceptable salt thereof, and compositions containing them, wherein the variables are defined herein, and their use to reduce or inhibit PTH secretion, including methods for reducing or inhibiting PTH secretion and methods for treatment or prophylaxis of diseases associated with bone disorders, such as osteoporosis, or associated with excessive secretion of PTH, such as hyperparathyroidism. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.
Highly stereoselective and catalytic desulfitative C O and C I dienylation with sulfolenes: The importance of basic additives
作者:Hang T. Dang、Viet D. Nguyen、Hoang H. Pham、Hadi D. Arman、Oleg V. Larionov
DOI:10.1016/j.tet.2019.04.012
日期:2019.6
organic synthesis and materials science. We describe herein a palladium-catalyzeddienylation of aryl, heteroaryl, and vinyl triflates, nonaflates and iodides that were previously identified as recalcitrant substrates for the sulfolene-mediated catalytic dienylation. The method has now been successfully expanded to C-O and C-I dienylation, demonstrating broad scope with respect to sulfonates, iodides
Enantioselective Intermolecular Heck and Reductive Heck Reactions of Aryl Triflates, Mesylates, and Tosylates Catalyzed by Nickel
作者:Xiaolei Huang、Shenghan Teng、Yonggui Robin Chi、Wenqiang Xu、Maoping Pu、Yun‐Dong Wu、Jianrong Steve Zhou
DOI:10.1002/anie.202011036
日期:2021.2.8
Nickel‐catalyzed intermolecular Heckreaction of cycloalkenes proceeds well with aryl triflates, mesylates and tosylates in excellent enantiomeric ratios. The asymmetric reductive Heckreaction also works with a 2‐cyclopentenone ketal, which is equivalent to conjugate arylation of the enone itself.
Studies toward the discovery of the next generation of antidepressants. Part 6: Dual 5-HT1A receptor and serotonin transporter affinity within a class of arylpiperazinyl-cyclohexyl indole derivatives
作者:Dahui Zhou、Ping Zhou、Deborah A. Evrard、Kristin Meagher、Michael Webb、Boyd L. Harrison、Donna M. Huryn、Jeannette Golembieski、Geoffrey A. Hornby、Lee E. Schechter、Deborah L. Smith、Terrance H. Andree、Richard E. Mewshaw
DOI:10.1016/j.bmc.2008.05.075
日期:2008.7
1H-indole (2), a series of related arylpiperazin-4-yl-cyclohexyl indole analogs were synthesized then evaluated as 5-HT transporter inhibitors and 5-HT(1A) receptor antagonists. The investigation of the structure-activity relationships revealed the optimal pharmacophoric elements required for activities in this series. The best example from this study, 5-(piperazin-1-yl)quinoline analog (trans-20)