A phosphorylamide derivative represented by the general formula (I): ##STR1## wherein R represents an amino group that may be substituted, or a salt thereof, possesses potent antibacterial activity against Helicobacter bacterium, especially Helicobacter pylori, and is useful for prevention or treatment of digestive diseases caused by Helicobacter bacterium, solely or in combination with an antacid or an acid secretion inhibitor.
Redox-Neutral Photocatalytic C−H Carboxylation of Arenes and Styrenes with CO2
作者:Matthias Schmalzbauer、Thomas D. Svejstrup、Florian Fricke、Peter Brandt、Magnus J. Johansson、Giulia Bergonzini、Burkhard König
DOI:10.1016/j.chempr.2020.08.022
日期:2020.10
Carbondioxide (CO2) is an attractive one-carbon (C1) building block in terms of sustainability and abundance. However, its low reactivity limits applications in organic synthesis as typically high-energy reagents are required to drive transformations. Here, we present a redox-neutral C─H carboxylation of arenes and styrenes using a photocatalytic approach. Upon blue-light excitation, the anthrolate
Rhodium-Catalyzed Difunctionalization of Alkenes Using Cyclic 1,3-Dicarbonyl-Derived Iodonium Ylides
作者:Zhenwei Zhang、Borong Su、Jiajun Gong、Huaming Tao、Shaoyu Mai
DOI:10.1021/acs.orglett.4c00186
日期:2024.3.8
Herein, we introduce an iodonium ylide strategy to achieve novel α-alkylation of cyclic 1,3-dicarbonyls through harnessing C(sp3)–Rh species generated from 5-exo-trig cyclization to provide rapid access to molecular hybridization of medically important isoindolin-1-ones and cyclic 1,3-dicarbonyls from readily available substrates. This approach features mild conditions, good yield, excellent functional
Ru(II)-Catalyzed Carboamination of Olefins with α-Carbonyl Sulfoxonium Ylides
作者:Zhenwei Zhang、Borong Su、Fuhong Zhong、Yongyan Zhu、Yao Zhou、Shaoyu Mai、Huaming Tao
DOI:10.1021/acs.joc.3c02788
日期:2024.4.19
The first ruthenium-catalyzed carboamination of olefins with α-carbonyl sulfoxonium ylides is reported. The utilization of an inexpensive ruthenium catalyst enables the concisesynthesis of pharmaceutically important isoindolin-1-ones, which possess both a stereogenic center and β-carbonyl side chain. This method is mild, efficient, and scalable and allows for the coupling of a wide range of aryl-