Selenophene-Containing Inhibitors of Type IIA Bacterial Topoisomerases
摘要:
We investigated compounds related to the previously reported anti-staphyloccocal agent AVE6971 in an effort to attenuate inhibition of hERG potassium channel current that has been noted for this and related antibacterial drug classes. While most modifications of the original thiophene group compromised antibacterial activity, one selenophene analogue displayed (i) improved activity against the primary target enzyme DNA gyrase, (ii) similar activities against a panel of MRSA clinical isolates, and (iii) reduced hERG channel inhibition.
Electrochemical Nickel-Catalyzed C(sp<sup>3</sup>)–C(sp<sup>3</sup>) Cross-Coupling of Alkyl Halides with Alkyl Tosylates
作者:Malek Y. S. Ibrahim、Graham R. Cumming、Raquel Gonzalez de Vega、Pablo Garcia-Losada、Oscar de Frutos、C. Oliver Kappe、David Cantillo
DOI:10.1021/jacs.3c07313
日期:2023.8.9
nickel-catalyzed, electrochemically driven method for the coupling of alkyl bromides with alkyl tosylates. Selective cross-coupling transformations were achieved even between C(sp3)-secondary bromides and tosylates. Key to achieve high selectivity was the combination of the tosylates with sodium bromide as the supporting electrolyte, gradually generating small amounts of the more reactive bromide by substitution and
申请人:National Institute of Biological Sciences, Beijing
公开号:US11034680B2
公开(公告)日:2021-06-15
The invention provides compounds that are inhibitors or covalent modifiers of succinate dehydrogenase subunit B (SDHB) and/or inhibitors of apoptosis, and pharmaceutically acceptable salts, hydrates and stereoisomers thereof. The compounds are employed in pharmaceutical compositions, and methods of making and use, including treating a person in need thereof with an effective amount of the compound or composition.
本发明提供了琥珀酸脱氢酶亚基 B (SDHB) 的抑制剂或共价修饰剂和/或细胞凋亡抑制剂的化合物及其药学上可接受的盐、水合物和立体异构体。这些化合物可用于药物组合物以及制造和使用方法中,包括用有效量的化合物或组合物治疗有需要的人。
Nickel-Catalyzed Cross-Coupling between Functionalized Primary or Secondary Alkylzinc Halides and Primary Alkyl Halides
作者:Anne Eeg Jensen、Paul Knochel
DOI:10.1021/jo0105787
日期:2002.1.1
In the presence of Bu4NI (3 equiv) and 4-fluorostyrene (20 mol %), unreactive primary and secondary alkylzinc iodides undergo nickel-catalyzed cross-couplings with various primary alkyl iodides or bromides. More reactive secondary dialkylzincs and the mixed zinc organometallics RZnTMSM undergo the cross-coupling reaction in the absence of Bu4NI. The bicyclic secondary diorganozinc 6 prepared via boron-zinc exchange reacts with high retention of configuration. Free NH-groups are tolerated in the cross-coupling allowing the synthesis of aminated products.
Marini-Bettolo; Chiavarelli, Gazzetta Chimica Italiana, 1951, vol. 81, p. 98,102