147895-43-0Relevant articles and documents
Thermal behavior and nucleation kinetics of 1,5-dimethyl-2-nitroimino-1, 3, 5-triazinane crystal
Hu, Yonghong,Chen, Xiao,Yang, Wenge,Lei, Ziyu,Zhao, Cong
, p. 170 - 174 (2010)
Nitroguanidine derivatives have increasingly gained attention because of their high insecticidal activities and wide spectrum. In this paper, nitroguanidine derivative 1,5-dimethyl-2-nitroimino-1, 3, 5-triazinane was synthesized, and its crystal structure was determined by X-ray technique. The thermal behaviors of 1, 5-dimethyl-2-nitroimino-1, 3, 5-triazinane in a nitrogen atmosphere were also studied under non-isothermal conditions by thermogravimetry (TG) and differential scanning calorimetry (DSC) techniques. The TG and DSC studies showed that the sample started to melt at 408.1 K with high melting enthalpy of 121.3 J/g and was stable up to at least 423.2 K, which indicated that the sample could be effectively utilized for various devices below 423.2 K. The melting entropy of 1,5-dimethyl-2-nitroimino-1, 3, 5-triazinane calculated from melting point and melting enthalpy using Eq. (1) was 51.476 J mol-1 K-1. In addition, the nucleation parameters of 1,5-dimethyl-2-nitroimino-1, 3, 5-triazinane in ethanol, such as the radius of critical nucleus and the Gibbs free energy barrier, had also been investigated based on classical nucleation theory. Crown Copyright
Discovery of First-in-Class, Potent, and Orally Bioavailable Embryonic Ectoderm Development (EED) Inhibitor with Robust Anticancer Efficacy
Huang, Ying,Zhang, Jeff,Yu, Zhengtian,Zhang, Hailong,Wang, Youzhen,Lingel, Andreas,Qi, Wei,Gu, Justin,Zhao, Kehao,Shultz, Michael D.,Wang, Long,Fu, Xingnian,Sun, Yongfeng,Zhang, Qiong,Jiang, Xiangqing,Zhang, Jiangwei,Zhang, Chunye,Li, Ling,Zeng, Jue,Feng, Lijian,Zhang, Chao,Liu, Yueqin,Zhang, Man,Zhang, Lijun,Zhao, Mengxi,Gao, Zhenting,Liu, Xianghui,Fang, Douglas,Guo, Haibing,Mi, Yuan,Gabriel, Tobias,Dillon, Michael P.,Atadja, Peter,Oyang, Counde
supporting information, p. 2215 - 2226 (2017/04/03)
Overexpression and somatic heterozygous mutations of EZH2, the catalytic subunit of polycomb repressive complex 2 (PRC2), are associated with several tumor types. EZH2 inhibitor, EPZ-6438 (tazemetostat), demonstrated clinical efficacy in patients with acceptable safety profile as monotherapy. EED, another subunit of PRC2 complex, is essential for its histone methyltransferase activity through direct binding to trimethylated lysine 27 on histone 3 (H3K27Me3). Herein we disclose the discovery of a first-in-class potent, selective, and orally bioavailable EED inhibitor compound 43 (EED226). Guided by X-ray crystallography, compound 43 was discovered by fragmentation and regrowth of compound 7, a PRC2 HTS hit that directly binds EED. The ensuing scaffold hopping followed by multiparameter optimization led to the discovery of 43. Compound 43 induces robust and sustained tumor regression in EZH2MUT preclinical DLBCL model. For the first time we demonstrate that specific and direct inhibition of EED can be effective as an anticancer strategy.
Tert -Butyl Hypochlorite Mediated Oxidative Chlorination of S -Alkylisothiourea Salts: Synthesis of Sulfonyl Chlorides
Qiu, Kui,Wang, Rennan
, p. 3186 - 3190 (2015/10/19)
Under neutral conditions, a variety of S-alkylisothiourea salts were smoothly converted into the corresponding sulfonyl chlorides through tert-butyl chlorite mediated oxidative chlorination in good to excellent yields after simple purification. In addition to the environmental and procedural advantages of this method, the neutral conditions potentially make it applicable to substrates that bear acid-sensitive functional groups. For example, the Cbz-protected 2-aminoethanesulfonyl chloride could be synthesized in moderate to good yields under the current neutral conditions, and the acid-sensitive Cbz-protecting group was not affected.
