合成了一系列特殊的硝基硝基氧:2-(苯并咪唑-2′-基)-4,4,5,5-四甲基-4,5-二氢-1 H-咪唑-3-氧化物-1-氧基单-苯环上的二氟化、三氟化或四氟化。所有顺磁体的结构均通过单晶 X 射线衍射明确证实。研究发现,在晶体中,由于苯并咪唑部分(氢键供体)和硝基硝基氧基团或苯并咪唑环(氢键受体)之间的分子间氢键,自由基组装成链。硝基硝基氧的磁性取决于氢键结合自由基的类型。4-氟-、5-氟-、4,6-二氟-、4,5,6-三氟-、4,5,7-三氟-和4,5,6,7-四氟-的磁性基序衍生物以及非氟化化合物由麦康奈尔 I 型机理形成的铁磁链 ( J / k B ≈ 20–40 K) 组成。在5,6-二氟和4,5-二氟衍生物中,顺磁中心之间的距离很大,因此交换相互作用很弱。根据循环伏安法,顺磁体的氧化是可逆的,而其还原是准可逆的电子转移(EC机制);自由基的实验氧化还原电位与计算值密切相关。
合成了一系列特殊的硝基硝基氧:2-(苯并咪唑-2′-基)-4,4,5,5-四甲基-4,5-二氢-1 H-咪唑-3-氧化物-1-氧基单-苯环上的二氟化、三氟化或四氟化。所有顺磁体的结构均通过单晶 X 射线衍射明确证实。研究发现,在晶体中,由于苯并咪唑部分(氢键供体)和硝基硝基氧基团或苯并咪唑环(氢键受体)之间的分子间氢键,自由基组装成链。硝基硝基氧的磁性取决于氢键结合自由基的类型。4-氟-、5-氟-、4,6-二氟-、4,5,6-三氟-、4,5,7-三氟-和4,5,6,7-四氟-的磁性基序衍生物以及非氟化化合物由麦康奈尔 I 型机理形成的铁磁链 ( J / k B ≈ 20–40 K) 组成。在5,6-二氟和4,5-二氟衍生物中,顺磁中心之间的距离很大,因此交换相互作用很弱。根据循环伏安法,顺磁体的氧化是可逆的,而其还原是准可逆的电子转移(EC机制);自由基的实验氧化还原电位与计算值密切相关。
[EN] PYRAZOLOPYRAZINES ACTING ON CANCERS VIA INHIBITION OF CDK12<br/>[FR] PYRAZOLOPYRAZINES AGISSANT SUR DES CANCERS PAR INHIBITION DE CDK12
申请人:BAYER AG
公开号:WO2021176049A1
公开(公告)日:2021-09-10
The present invention provides compounds of general formula (I) in which X, R1, R2 and R3 are as described and defined herein, methods of preparing said compounds, intermediate compounds useful for preparing said compounds, pharmaceutical compositions and combinations comprising said compounds, and the use of said compounds for manufacturing pharmaceutical compositions for the treatment and/or prophylaxis of diseases, in particular of hyperproliferative disorders such as cancer disorders, as a sole agent or in combination with other active ingredients.
Synthesis and SAR Studies of Dual AKT/NF-κB Inhibitors Against Melanoma
作者:Elisa Barile、Surya K. De、Yongmei Feng、Vida Chen、Li Yang、Ze'ev Ronai、Maurizio Pellecchia
DOI:10.1111/cbdd.12177
日期:2013.11
The protein Kinase B alpha (AKT) and nuclear factor kappa‐light‐chain‐enhancer of activated B cells (NF‐κB) pathways are central regulators of cellular signaling events at the basis of tumor development and progression. Both pathways are often up‐regulated in different tumor types including melanoma. We recently reported the identification of compound 1 (BI‐69A11) as inhibitor of the AKT and the NF‐κB pathways. Here, we describe SAR studies that led to novel fluorinated derivatives with increased cellular potency, reflected in efficient inhibition of AKT and IKKs. Selected compounds demonstrated effective toxicity on melanoma, breast, and prostate cell lines. Finally, a representative derivative showed promising efficacy in an in vivo melanoma xenograft model.
MODULATORS OF THE INTEGRATED STRESS PATHWAY
申请人:Calico Life Sciences LLC
公开号:US20200361941A1
公开(公告)日:2020-11-19
Provided herein are compounds, compositions, and methods useful for modulating the integrated stress response (ISR) and for treating related diseases; disorders and conditions.