[EN] TRICYCLIC BENZOXABOROLES AS ANTIBACTERIAL AGENTS<br/>[FR] BENZOXABOROLES TRICYCLIQUES EN TANT QU'AGENTS ANTIBACTÉRIENS
申请人:DAIICHI SANKYO CO LTD
公开号:WO2016001834A1
公开(公告)日:2016-01-07
The present invention provides a tricyclic compound represented by general formula (I), a pharmaceutical salt thereof, or a stereoisomer thereof exhibits excellent antibacterial activity against Gram-negative bacteria resistant bacteria thereof, and also being excellent in terms of safety. Furthermore, the present invention provides production processes, pharmaceutical compositions comprising a tricyclic compound, a pharmaceutically acceptable salt thereof, or a stereoisomer thereof as an active ingredient and use thereof as a pharmaceutical agent. The compounds of the present invention are useful for the treatment and/or prevention of disease such as complicated urinary tract infections (cUTIs), nosocomial pneumonia, intra- abdominal infections (lAls) or bacteremia.
in situ formed biaryl imine as a substrate. Tolerance of a very wide variety of N-substituents is indicated; this has never previously been disclosed by other reports. Application of this method to synthesis of the natural alkaloid bicolorine, and its derivatives, was also carried out in only three synthetic steps from commercially available compounds.
Strategies for the synthesis of Amaryllidaceae alkaloids, including crinasiadine, trisphaeridine, bicolorine, N-methylcrinasiadine, 5,6-dihydrobicolorine, galanthindole, lycosinine A and lycosinine B were reported. Investigation of optionally synthetic routes to approach bicolorine, 5,6-dihydrobicolorine, trisphaeridine and N-methylcrinasiadine were demonstrated as well. In addition, three structurally
One-Pot Radiosynthesis of [18F]Anle138b—5-(3-Bromophenyl)-3-(6-[18F]fluorobenzo[d][1,3]dioxol-5-yl)-1H-pyrazole—A Potential PET Radiotracer Targeting α-Synuclein Aggregates
作者:Viktoriya V. Orlovskaya、Olga S. Fedorova、Nikolai B. Viktorov、Daria D. Vaulina、Raisa N. Krasikova
DOI:10.3390/molecules28062732
日期:——
anle138b, labelled with fluorine-18isotope, eminently suitable for PET imaging due to half-life and decay energy characteristics (97% β+ decay, 109.7 min half-life, and 635 keV positron energy). A three-step radiosynthesis was developed starting from 6-[18F]fluoropiperonal (6-[18F]FP) that was prepared using (piperonyl)(phenyl)iodonium bromide as a labelling precursor. The obtained 6-[18F]FP was used directly
One-Pot Dual C–C Bond-Forming Cascade Process via Suzuki Coupling and Intramolecular Cyclocondensation: An Access to Functionalized Naphthalenes
作者:Pradip S. Waghmare、Sreenivasulu Chinnabattigalla、Satyanarayana Gedu
DOI:10.1021/acs.joc.3c01501
日期:2023.10.6
ketones in single-step reactions from readily available materials is highly desirable. Herein, domino one-pot synthesis of functionalized naphthyl ketones via intermolecular Suzuki–Miyauracoupling, followed by intramolecular distal aldol-type condensation with the γ-methyl/methylene groups is reported. The present strategy displayed a comprehensive substrate scope and good functional group tolerance and