4-Arylpiperidine derivatives for the treatment of pruritus
申请人:Pfizer Inc.
公开号:US06518282B1
公开(公告)日:2003-02-11
There is provided a compound of formula I,
wherein R1, R2, R3 and R4 have meanings given in the description, which are useful in the prophylaxis and in the treatment of pruritus.
4-arylpiperidine derivatives for the treatment of pruritus
申请人:PFIZER INC.
公开号:EP1072595A2
公开(公告)日:2001-01-31
There is provided a compound of formula I,
wherein R1, R2, R3 and R4 have meanings given in the description, which are useful in the prophylaxis and in the treatment of pruritus.
本发明提供了一种式 I 的化合物、
其中 R1、R2、R3 和 R4 的含义见说明,可用于预防和治疗瘙痒症。
Synthesis and inhibitory evaluation of 3-linked imipramines for the exploration of the S2 site of the human serotonin transporter
作者:Anne Brinkø、Maja T. Larsen、Heidi Koldsø、Louise Besenbacher、Anders Kolind、Birgit Schiøtt、Steffen Sinning、Henrik H. Jensen
DOI:10.1016/j.bmc.2016.04.039
日期:2016.6
The human serotonin transporter is the primary target of several antidepressant drugs, and the importance of a primary, high affinity binding site (S1) for antidepressant binding is well documented. The existence of a lower affinity, secondary binding site (S2) has, however, been debated. Herein we report the synthesis of 3-position coupled imipramine ligands from clomipramine using a copper free Sonogashira reaction. Ligand design was inspired by results from docking and steered molecular dynamics simulations, and the ligands were utilized in a structure-activity relationship study of the positional relationship between the S1 and S2 sites. The computer simulations suggested that the S2 site does indeed exist although with lower affinity for imipramine than observed within the S1 site. Additionally, it was possible to dock the 3-linked imipramine analogs into positions which occupy the S1 and the S2 site simultaneously. The structure activity relationship study showed that the shortest ligands were the most potent, and mutations enlarging the proposed S2 site were found to affect the larger ligands positively, while the smaller ligands were mostly unaffected. (C) 2016 Elsevier Ltd. All rights reserved.