Isomeric thiazole derivatives as ligands for the neuropeptide Y5 receptor
摘要:
Sets of isomeric thiazole derivatives I and 2 have been synthesised in a parallel iterative solution-phase synthesis approach guided by the SAR analysis derived from biological results and computer-aided design and analysis. This synergistic and streamlined working procedure led to highly active isomeric NPY5 receptor ligands. However, a 10-fold difference at least in their respective binding affinities was consistently found for all isomeric pairs 1 and 2. The analysis of conformational differences due to heteroatom interactions in I and 2 revealed a favourable C=(OS)-S-... interaction in 1, whereas thiazoles 2 showed a repulsive C=(ON)-N-... interaction. (c) 2005 Elsevier Ltd. All rights reserved.
合成了具有不同功能和间隔基长度变化的新型烷基化杂芳基丙基胍,以确定它们在四种组胺受体(H 1 R、H 2 R、H 3 R、H 4 R)亚型中的行为。基于先导结构 SK&F 91486 ( 2 ),开发了具有不同末端官能团和不同碱度的烷基化胍,如胺、胍和脲。此外, 2的胍结构上的杂原子交换产生了先导化合物的简单类似物。完成了所有组胺受体亚型的放射测定,以及豚鼠 ( gp ) 回肠 ( gp H 1 R) 和右心房 ( gp H 2 R) 的器官浴研究。具有末端功能化的配体部分地导致高度亲和和有效的结构(两位数纳摩尔),这在组胺受体家族中表现出较差的选择性。虽然苯甲酰脲衍生物144显示出对人 ( h ) H 3 R 的偏好,但 S-甲基异硫脲类似物143在h H 4 R (pK i = 8.14) 上获得了高亲和力并具有中等选择性。后一个发现的分子基础得到了计算研究的支持。
MONOBACTAM ORGANIC COMPOUNDS FOR THE TREATMENT OF BACTERIAL INFECTIONS
申请人:AULAKH Virender Singh
公开号:US20150266867A1
公开(公告)日:2015-09-24
This invention pertains generally to antibacterial compounds of Formula I,
as further described herein, and pharmaceutically acceptable salts and formulations thereof. In certain aspects, the invention pertains to methods of using such compounds to treat infections such as those caused by Gram-negative bacteria.
Compounds of formula I are provided
1
as well as pharmaceutically acceptable salts and esters thereof, wherein R
1
to R
5
, n, m and A have the significance disclosed in the specification, and can be used for the treatment or prevention of arthritis, cardiovascular diseases, diabetes, renal failure, eating disorders and obesity.
[EN] THIAZOLE DERIVATIVES AS NPY RECEPTOR ANTAGONISTS<br/>[FR] DERIVES THIAZOLES UTILISES COMME ANTAGONISTES DU RECEPTEUR NPY
申请人:HOFFMANN LA ROCHE
公开号:WO2003072577A1
公开(公告)日:2003-09-04
Compounds of formula (I) as well as pharmaceutically acceptable salts and esters thereof, wherein R1 to R5, n, m and A have the significance given in claim 1, can be used in the form of pharmaceutical preparations for the treatment or prevention of arthritis, cardiovascular diseases, diabetes, renal failure, eating disorders and obesity.
Compounds of formula I are provided
as well as pharmaceutically acceptable salts and esters thereof, wherein R1 to R5, n, m and A have the significance disclosed in the specification, and can be used for the treatment or prevention of arthritis, cardiovascular diseases, diabetes, renal failure, eating disorders and obesity.
The invention provides methods of preparing macrocycles including macrocycle stabilized peptides (MSPs). Macrocycles and MSPs are prepared according to nucleophilic capture of an iminoquinomethide type intermediate generated from a suitably substituted 2-amino-thiazol-5-yl carbinol. The preferred nucleophile may be selected from an electron rich aromatic moiety in the case of macrocycles and, in the case of MSPs, at least one amino acid comprises an electron rich aromatic moiety. In addition, the concept can be extended to other related 5-membered heterocyclic systems in place of the thiazole, such as imidazole or oxazole. The conditions for the generation of the corresponding iminoquinomethide type intermediates may be similar or different than the conditions used for the 2-amino-thiazol-5-yl carbinol.