Highly Regioselective Organocatalyzed Synthesis of Pyrazoles from Diazoacetates and Carbonyl Compounds
作者:Lei Wang、Jiayao Huang、Xiaojie Gong、Jian Wang
DOI:10.1002/chem.201300047
日期:2013.6.3
β‐ketoesters, β‐diketones, and aldehydes), as well as the operational simplicity of this process, a convenient, practical, and highly modular pyrazolesynthesis has been developed. We believe that this work will arouse more research interest in the organocatalytic synthesis of other biologically active heterocycles. Such studies are currently underway in our laboratory.
Expanding the Strained Alkyne Toolbox: Generation and Utility of Oxygen-Containing Strained Alkynes
作者:Tejas K. Shah、Jose M. Medina、Neil K. Garg
DOI:10.1021/jacs.6b01986
日期:2016.4.13
strained intermediates, the 4,5-benzofuranyne and the 3,4-oxacyclohexyne. In situtrapping of these intermediates affords an array of heterocyclic scaffolds by the formation of one or more new C-C or C-heteroatom bonds. Experimentally determined regioselectivities were consistent with predictions made using the distortion/interaction model and were also found to be greater compared to selectivities seen
我们报告了允许访问两个氧杂环应变中间体,4,5-苯并呋喃和 3,4-氧杂环己炔的合成方法。这些中间体的原位捕获通过形成一个或多个新的 CC 或 C-杂原子键提供了一系列杂环支架。实验确定的区域选择性与使用失真/相互作用模型所做的预测一致,并且还发现与在相应含氮中间体的捕获实验中看到的选择性相比更大。这些研究证明了氧杂环芳烃和炔烃在合成功能化杂环方面的多功能性,同时进一步扩大了变形/相互作用模型的范围。而且,
ALKYNYL ALCOHOLS AND METHODS OF USE
申请人:Genentech, Inc.
公开号:US20150065482A1
公开(公告)日:2015-03-05
The invention relates to compounds of Formula (0):
wherein Q, A
1
-A
8
, R
4
and R
5
and each has the meaning as described herein.
Compounds of Formula (0) and pharmaceutical compositions thereof are useful in the treatment of diseases and disorders in which undesired or over-activation of NF-kB signaling is observed.
mitochondrial complexI (CI) is emerging as an attractive anticancer strategy, and CI inhibitor IACS-010759 has achieved breakthrough success. However, the narrow therapeutic index of IACS-010759 seriously hinders its further application. In this study, a series of novel pyrazole amides were designed and optimized based on IACS-010759, and their potential CI inhibitory effects were biologicallyevaluated. Among
靶向线粒体复合物 I (CI) 正在成为一种有吸引力的抗癌策略,CI 抑制剂 IACS-010759 已取得突破性成功。然而,IACS-010759治疗指数狭窄严重阻碍了其进一步应用。本研究基于IACS-010759设计和优化了一系列新型吡唑酰胺,并对其潜在的CI抑制作用进行了生物学评价。其中,SCAL-255(化合物5q)和SCAL-266(化合物6f)的最大耐受剂量(MTD)值为68 mg/kg,是IACS-010759(6 mg/kg)的近10倍,显示出良好的安全性。此外,SCAL-255和SCAL-266在体外显着抑制HCT116和KG-1细胞的增殖,在体内对KG-1细胞也表现出令人满意的抑制活性。这些结果表明,优化的化合物可能作为有前途的 CI 抑制剂,对抗氧化磷酸化 (OXPHOS) 依赖性癌症,值得进一步研究。