778617-61-1Relevant articles and documents
Design, synthesis and evaluation of novel 5-phenylthiophene derivatives as potent fungicidal of Candida albicans and antifungal reagents of fluconazole-resistant fungi
Cheng, Maosheng,Cui, Hengxian,Jiang, Hong,Li, Song,Liu, Lei,Su, Xin,Sun, Yin,Wu, Tianxiao,Yin, Wenbo,Zhang, Yuxin,Zhao, Dongmei,Zhao, Liyu,Zheng, Yang
, (2021/08/13)
A series of 5-phenylthiophene derivatives with novel structures were designed and synthesized to combat the increasing incidence of susceptible and drug-resistant fungal infections. The antifungal activity of the synthesized compounds was assessed against seven susceptible strains and six fluconazole-resistant strains. It is especially encouraging that compounds 17b and 17f displayed significant antifungal activities against all tested strains. Furthermore, the potent compounds 17b and 17f could prevent the formation of fungi biofilms and 17f displayed satisfactory fungicidal activity. Preliminary mechanistic studies showed that the potent antifungal activity of compound 17f stemmed from inhibition of C. albicans CYP51. In addition, Compounds 17b and 17f were almost nontoxic to mammalian A549, MCF-7, and THLE-2 cells. These results strongly suggested that compounds 17b and 17f are promising as novel antifungal drugs.
Pd-Catalyzed Decarboxylative Olefination: Stereoselective Synthesis of Polysubstituted Butadienes and Macrocyclic P-glycoprotein Inhibitors
Chen, Xiangyang,Hao, Jiping,Houk, K. N.,Li, Yingzi,Lou, Liguang,Quan, Haitian,Song, Bichao,Wang, Lu,Xia, Yuanzhi,Xie, Peipei,Xu, Zhongliang,Yang, Weibo
supporting information, p. 9982 - 9992 (2020/06/27)
The efficient and stereoselective synthesis of polysubstituted butadienes, especially the multifunctional butadienes, represents a great challenge in organic synthesis. Herein, we wish to report a distinctive Pd(0) carbene-initiated decarboxylative olefination approach that enables the direct coupling of diazo esters with vinylethylene carbonates (VECs), vinyl oxazolidinones, or vinyl benzoxazinones to afford alcohol-, amine-, or aniline-containing 1,3-dienes in moderate to high yields and with excellent stereoselectivity. This protocol features operational simplicity, mild reaction conditions, a broad substrate scope, and gram-scalability. Notably, a structurally unique allylic Pd(II) intermediate was isolated and characterized. DFT calculation and control experiments demonstrated that a rare Pd(0) carbene intermediate could be involved in this reaction. Moreover, the polysubstituted butadienes as novel building blocks were unprecedentedly assembled into macrocycles, which efficiently inhibited the P-glycoprotein and dramatically reversed multidrug resistance in cancer cells by 190-fold.
Synthesis of 2-Aminoazoles from Thioesters via α-Heterosubstituted Ketones by Copper-Mediated Cross-Coupling
Kobayashi, Hiroyuki,Eickhoff, John A.,Zakarian, Armen
, p. 9989 - 9999 (2015/11/03)
Facile synthesis of a variety of α-heterosubstituted ketones under mild conditions was achieved by copper-mediated cross-coupling of thioesters with functionalized organostannanes. Application of this coupling methodology provided a concise pathway for the conversion of carboxylic acids to 2-aminoimidazoles, 2-aminothiazoles, and 2-aminooxazoles via thioesters in practical yields.