Ligand-based virtual screening identifies a family of selective cannabinoid receptor 2 agonists
摘要:
The cannabinoid receptor 2 (CB2R) has been linked with the regulation of inflammation, and selective receptor activation has been proposed as a target for the treatment of a range of inflammatory diseases such as atherosclerosis and arthritis. In order to identify selective CB2R agonists with appropriate physicochemical and ADME properties for future evaluation in vivo, we first performed a ligand-based virtual screen. Subsequent medicinal chemistry optimisation studies led to the identification of a new class of selective CB2R agonists. Several examples showed high levels of activity (EC50 < 200 nM) and binding affinity (K-i < 200 nM) for the CB2R, and no detectable activity at the CB1R. The most promising example, DIAS2, also showed favourable in vitro metabolic stability and absorption properties along with a clean selectivity profile when evaluated against a panel of GPCRs and kinases. (C) 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
[EN] 3-((HETERO-)ARYL)-8-AMINO-2-OXO-1,3-DIAZA-SPIRO-[4.5]-DECANE DERIVATIVES<br/>[FR] DÉRIVÉS DE 3-((HÉTÉRO-)ARYL)-8-AMINO-2-OXO-1,3-DIAZA-SPIRO-[4.5]-DÉCANE
申请人:GRUENENTHAL GMBH
公开号:WO2017121647A1
公开(公告)日:2017-07-20
The invention relates to 3-((hetero-)aryl)-8-amino-2-oxo-1,3-diaza-spiro-[4.5]-decane derivatives, their preparation and their use in medicine, particularly in the treatment of pain.
An Investigation into the Cytotoxicity and Mode of Action of Some Novel <i>N</i>-Alkyl-Substituted Isatins
作者:Kara L. Vine、Julie M. Locke、Marie Ranson、Stephen G. Pyne、John B. Bremner
DOI:10.1021/jm0704189
日期:2007.10.1
studies indicated that the introduction of an aromatic ring with a one or three carbon atom linker at N1 enhanced the activity from that of the allyl, 2'-methoxyethyl, and 3'-methylbutyl N-substituted isatins. Furthermore, electron-withdrawing groups substituted at the meta or para position of the ring were favored over the orthoorientation. Of the 24 compounds screened, nine displayed sub-micromolar IC50
α-Glucosidase inhibitors are known to prevent the digestion of carbohydrates and reduce the impact of carbohydrates on blood glucose. Three series of tetracyclic oxindole derivatives were designed, synthesized and evaluated for α-glucosidase inhibitory activity in vitro. Compound 6t exhibited the most potent inhibitory activity with IC50 0.7 μM and was about 170 times as active as acarbose (IC50 = 115
已知α-葡萄糖苷酶抑制剂可防止碳水化合物的消化并减少碳水化合物对血糖的影响。设计,合成和评价了三系列的四环羟吲哚衍生物在体外对α-葡萄糖苷酶的抑制活性。化合物6t表现出最强的抑制活性,IC 50为0.7μM,活性约为阿卡波糖的170倍(IC 50 = 115.8μM)。化合物6t的动力学分析表明,它以不可逆和混合的方式抑制α-葡萄糖苷酶。荧光光谱表明6t直接与α-葡萄糖苷酶结合。对接模拟显示了6t和α-葡萄糖苷酶之间存在潜在的H键,van der Waals,Pi和Sigma-Pi相互作用。
Alkynylation of Isatin Derivatives Catalyzed by a Silver–Chiral Quaternary Ammonium Salt Derived from Quinine
isatins obviously is an efficient and economic method for the synthesis of 3-alkynyl-3-hydroxy-2-oxindoles. The new dimeric chiral quaternary ammoniums derived from a natural chiral alkaloid, quinine, can be used as cationic inducers of the enantioselectivity for the Ag(I)-catalyzed alkynylation of isatin derivatives undermildconditions. The desired chiral 3-alkynyl-3-hydroxy-2-oxindoles can be obtained
Confronting the Challenge of Asymmetric Carbonyl Addition to Sterically Bulky Isatins: Upgrading Dirhodium(II)/Biphosphine Catalytic System
作者:Wenjing Guo、Shuming Zhan、Han Yang、Zhenhua Gu
DOI:10.1021/acs.orglett.3c01028
日期:2023.5.12
Catalyticasymmetricaddition of arylboronic acids to ketones is a powerful transformation for directly delivering chiral tertiary alcohols. However, there is no successful example of enantioselective addition to steric bulky isatins, which contain bulky substituent at the 4-position. To confront this challenge, in this work a dirhodium/(BTFM-Garphos) system was developed that showed extremely high