Stereochemical analysis and cytotoxicity of kulokekahilide-2 and its analogues
摘要:
We report the conformational analysis of kulokekahilide-2, a cytotoxic cyclic depsipeptide, and its analogues. We also evaluated their cytotoxicity against human cancer cells. Although both the cis and trans conformations are possible for the amide bond between MePhe and MeGly, only one conformation was observed in DMSO. We also reveal that the configuration at C-43 in kulokekahilide-2 controls intramolecular ester exchange between the 26- and 24-membered cyclic depsipeptides. Kulokekahilide-2 and its analogues were evaluated for their cell-growth inhibition profile and using COMPARE analysis, which suggested a mechanism of action different from that of standard anticancer drugs. (C) 2013 Elsevier Ltd. All rights reserved.
3- and 6-Substituted 2-amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridines as A1 adenosine receptor allosteric modulators and antagonists
作者:Luigi Aurelio、Celine Valant、Heidi Figler、Bernard L. Flynn、Joel Linden、Patrick M. Sexton、Arthur Christopoulos、Peter J. Scammells
DOI:10.1016/j.bmc.2009.08.024
日期:2009.10
A series of 2-amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridines were prepared and evaluated as potential allosteric modulators at the A1 adenosine receptor. The structure–activity relationships of the 3- and 6-positions of a series of 2-amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridines were explored. Despite finding that 3- and 6-substituted 2-amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridines possess the ability
制备了一系列 2-氨基-4,5,6,7-四氢噻吩并 [2,3- c ] 吡啶,并将其评估为 A 1腺苷受体的潜在变构调节剂。探索了一系列2-氨基-4,5,6,7-四氢噻吩并[2,3- c ]吡啶的3-和6-位的构效关系。尽管发现3-和6-取代的2-氨基-4,5,6,7-四氢噻吩并[2,3- c ]吡啶具有识别激动剂占据的A 1上的变构位点的能力AR 在相对高的浓度下,我们在这个支架上进行的结构修改有利于表达正构拮抗剂特性而不是变构特性。该研究已将 2-amino-4,5,6,7-四氢噻吩并 [2,3- c ] 吡啶鉴定为 A 1 AR 的新型正构拮抗剂,并强调了控制变构调节和正构拮抗的结构元件之间的密切关系在 A 1 AR的激动剂功能。
Inhibitors of bacterial type III protein secretion systems
申请人:Li Xiaobing
公开号:US20050250819A1
公开(公告)日:2005-11-10
In accordance with the present invention, compounds that inhibit Type III protein section have been identified, and methods for their use provided. In one aspect of the invention, compounds useful in the inhibition of Type III protein section and/or in the treatment and prevention of bacterial infections, particularly Gram-negative bacterial infections, are provided. In another aspect of the invention, methods are provided for the inhibition of Type III protein secretion and/or the treatment and prevention of bacterial infections, particularly Gram-negative bacterial infections using the compounds of the invention.
Cyclic tetramer compounds as proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors for the treatment of metabolic disorders
申请人:NOVARTIS AG
公开号:US11026993B2
公开(公告)日:2021-06-08
The disclosure relates to inhibitors of PCSK9 useful in the treatment of cholesterol lipid metabolism, and other diseases in which PCSK9 plays a role, having the Formula (I):
or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, N-oxide, or tautomer thereof, wherein R1, R1, R1, R1, R1, R1, R1, R1, R1, X1, X2, and X3 are described herein.
[EN] INHIBITORS OF BACTERIAL TYPE III PROTEIN SECRETION SYSTEMS<br/>[FR] INHIBITEURS DE SYSTEMES DE SECRETIONS DE PROTEINES DE TYPE III BACTERIENNES
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2006083266A1
公开(公告)日:2006-08-10
[EN] In accordance with the present invention, compounds having formula (I), where the variables are as identified in the claims, that inhibit Type III protein secretion have been identified, and methods for their use provided. In one aspect of the invention, compounds useful in the inhibition of Type III protein secretion and/or in the treatment and prevention of bacterial infections, particular Gram-negative bacterial infections, are provided. In another aspect of the invention, methods are provided for the inhibition of Type III protein secretion and/or the treatment and prevention of bacterial infections, particular Gram-negative bacterial infections using the compounds of the invention. [FR] Conformément à la présente invention, des composés inhibant une sécrétion de protéines de type III ont été identifiés, et des procédés d'utilisation de ceux-ci ont été mis au point. L'invention concerne, suivant l'un de ses aspects, des composés utilisés dans l'inhibition d'une sécrétion de protéines de type III et/ou dans le traitement et la prévention d'infections bactériennes, en particulier, d'infections bactériennes à Gram-négatif. Dans un autre aspect, l'invention concerne des procédés d'inhibition de sécrétions de protéines de type III et/ou le traitement et la prévention d'infections bactériennes, en particulier, d'infections bactériennes à Gram-négatif au moyen des composés de l'invention.
[EN] CYCLIC TETRAMER COMPOUNDS AS PROPROTEIN CONVERTASE SUBTILISIN/KEXIN TYPE 9 (PCSK9) INHIBITORS FOR THE TREATMENT OF METABOLIC DISORDERS<br/>[FR] COMPOSÉS TÉTRAMÈRES CYCLIQUES SERVANT D'INHIBITEURS DE PROPROTÉINE CONVERTASE SUBTILISINE/KEXINE DE TYPE 9 (PCSK9) POUR LE TRAITEMENT DE TROUBLES MÉTABOLIQUES
申请人:NOVARTIS AG
公开号:WO2020110009A1
公开(公告)日:2020-06-04
The disclosure relates to inhibitors of PCSK9 useful in the treatment of cholesterol lipid metabolism, and other diseases in which PCSK9 plays a role, having the Formula (I): or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, N-oxide, or tautomer thereof, wherein R1, R1, R1, R1, R1, R1, R1, R1, R1, X1, X2, and X3 are described herein.