5682-75-7Relevant articles and documents
Discovery of a Pyrimidinedione Derivative as a Potent and Orally Bioavailable Axl Inhibitor
Zhang, Hefeng,Peng, Xia,Dai, Yang,Shao, Jingwei,Ji, Yinchun,Sun, Yiming,Liu, Bo,Cheng, Xu,Ai, Jing,Duan, Wenhu
supporting information, p. 3956 - 3975 (2021/04/12)
The receptor tyrosine kinase Axl plays important roles in promoting cancer progression, metastasis, and drug resistance and has been identified as a promising target for anticancer therapeutics. We used molecular modeling-assisted structural optimization starting with the low micromolar potency compound 9 to discover compound 13c, a highly potent and orally bioavailable Axl inhibitor. Selectivity profiling showed that 13c could inhibit the well-known oncogenic kinase Met with equal potency to its inhibition of Axl superfamily kinases. Compound 13c significantly inhibited cellular Axl and Met signaling, suppressed Axl- and Met-driven cell proliferation, and restrained Gas6/Axl-mediated cancer cell migration or invasion. Furthermore, 13c exhibited significant antitumor efficacy in Axl-driven and Met-driven tumor xenograft models, causing tumor stasis or regression at well-tolerated doses. All these favorable data make 13c a promising therapeutic candidate for cancer treatment.
C-O Bond Activation as a Strategy in Palladium-Catalyzed Cross-Coupling
Becica, Joseph,Leitch, David C.
, p. 641 - 646 (2020/12/14)
The activation of strong C-O bonds in cross-coupling catalysis can open up new oxygenate-based feedstocks and building blocks for complex-molecule synthesis. Although Ni catalysis has been the major focus for cross-coupling of carboxylate-based electrophiles, we recently demonstrated that palladium catalyzes not only difficult C-O oxidative additions but also Suzuki-Type cross-couplings of alkenyl carboxylates under mild conditions. We propose that, depending on the reaction conditions, either a typical Pd(0)/(II) mechanism or a redox-neutral Pd(II)-only mechanism can operate. In the latter pathway, C-C bond formation occurs through carbopalladation of the alkene, and C-O cleavage by β-carboxyl elimination. 1 Introduction 2 A Mechanistic Challenge: Activating Strong C-O Bonds 3 Exploiting Vinylogy for C-Cl and C-O Oxidative Additions 4 An Alternative Mechanism for Efficient Cross-Coupling Catalysis 5 Conclusions and Outlook.
Copper-Catalyzed Double Additions and Radical Cyclization Cascades in the Re-Engineering of the Antibacterial Pleuromutilin
Ruscoe, Rebecca E.,Fazakerley, Neal J.,Huang, Huanming,Flitsch, Sabine,Procter, David J.
supporting information, p. 116 - 119 (2016/01/26)
A general synthetic sequence involving simply prepared starting materials provides rapid access to diverse, novel tricyclic architectures inspired by pleuromutilin. SmII-mediated radical cyclization cascades of dialdehydes, prepared using a new
