Discovery of G2019S-Selective Leucine Rich Repeat Protein Kinase 2 inhibitors with in vivo efficacy
作者:Robert K. Leśniak、R. Jeremy Nichols、Marcus Schonemann、Jing Zhao、Chandresh R. Gajera、William L. Fitch、Grace Lam、Khanh C. Nguyen、Mark Smith、Thomas J. Montine
DOI:10.1016/j.ejmech.2021.114080
日期:2022.2
Leucine Rich Repeat Protein Kinase 2 gene (LRRK2) are the most common genetic causes of Parkinson's Disease (PD). The G2019S mutation is the most common inherited LRRK2 mutation, occurs in the kinase domain, and results in increased kinase activity. We report the discovery and development of compound 38, an indazole-based, G2019S-selective (>2000-fold vs. WT) LRRK2 inhibitor capable of entering rodent
The formula (I):
wherein each of R
2
and R
3
is, same or different, C2-C4 alkyl or the like; or R
2
and R
3
are taken together with the adjacent carbon atom to form a 5 to 8 membered non-aromatic carbocyclic ring; R
4
is C1-C6 alkyl or the like; X is an oxgen atom or a sulfur atom; A is the group of the formula:
wherein R
1
is, same or different, alkyl or the like; W is C2-C6 alkylene which may contain an optionally substituted heteroatom(s) or the like; n is an integer of 0 to 7, a pharmaceutically acceptable salt, or a solvate thereof.
Herein is disclosed a bioinspired approach in which triggered conformational changes are used to control electron transfer (ET) events. Photo-induced conformational rearrangements of a ligand are translated into changes in the coordination geometry and environment about a bound metal ion. Taking advantage of the differential coordination properties of CuIand CuII, these dynamics facilitate intramolecular ET from CuIto the ligand to create a CS state. The synthesis and photophysical characterization of CuCl(dpaaR) (dpaa = dipicolylaminoacetophenone, with R = H and OMe) is presented. These ligands incorporate a fluorophore into their framework that gives rise to a twisted intramolecular charge transfer (TICT) excited state. Excited state ligand twisting provides a tetragonal coordination geometry capable of capturing CuIIin the CS state when an internalortho-OMe binding site is present (as in dpaaOMe).
本文公开了一种生物启发方法,利用触发的构象变化来控制电子转移(ET)事件。配体的光诱导构象重排被转化为结合金属离子的配位几何和环境的变化。利用 CuI 和 CuII 的不同配位特性,这些动态变化促进了从 CuI 到配体的分子内电子转移,从而形成 CS 状态。本文介绍了 CuCl(dpaaR)(dpaa = 二icolaminoacetophenone,R = H 和 OMe)的合成和光物理特性。这些配体在其框架中加入了一种荧光体,从而产生了分子内电荷转移(TICT)扭曲激发态。激发态配体扭转提供了一个四方配位几何结构,当存在一个内部正-OMe 结合位点(如 dpaaOMe)时,它能够捕获 CS 态的 CuII。
2-NAPHTHYLIMINO-1,3-THIAZINE DERIVATIVE
申请人:SHIONOGI & CO., LTD.
公开号:EP1659117A1
公开(公告)日:2006-05-24
The formula (I):
wherein each of R2 and R3 is, same or different, C2-C4 alkyl or the like; or R2 and R3 are taken together with the adjacent carbon atom to form a 5 to 8 membered non-aromatic carbocyclic ring; R4 is C1-C6 alkyl or the like; X is an oxgen atom or a sulfur atom; A is the group of the formula:
wherein R1 is, same or different, alkyl or the like; W is C2-C6 alkylene which may contain an optionally substituted heteroatom(s) or the like; n is an integer of 0 to 7, a pharmaceutically acceptable salt, or a solvate thereof.