[EN] INHIBITORS OF PSEUDOMONAS AERUGINOSA VIRULENCE FACTOR LasB<br/>[FR] INHIBITEURS DU FACTEUR DE VIRULENCE DE LASB DE PSEUDOMONAS AERUGINOSA
申请人:HELMHOLTZ ZENTRUM INFEKTIONSFORSCHUNG GMBH
公开号:WO2022043322A1
公开(公告)日:2022-03-03
The present invention relates to compounds of formula (la) and the use thereof as inhibitors of P. aeruginosa virulence factor LasB. Formula (la). These compounds are useful in the treatment of bacterial infections, especially caused by P. aeruginosa.
Cross-electrophilecoupling reactions of different electrophiles have been extensively studied but mainly limited to bromides and iodides. Here, we report an electrochemically induced nickel-catalyzedcross-electrophilecoupling strategy between alkenyltriflates and α-chloroamides in an undivided cell under mild reaction conditions, affording the α-functionalized amide derivatives in good to excellent
Nucleophilic Carbene and HOAt Relay Catalysis in an Amide Bond Coupling: An Orthogonal Peptide Bond Forming Reaction
作者:Harit U. Vora、Tomislav Rovis
DOI:10.1021/ja0764052
日期:2007.11.1
A catalyzed internal redox process provides a route from alpha-reducible aldehydes and amines; to alpha-reduced amides. The chemistry is catalyzed by nucleophilic carbenes and common peptide cocatalysts such as HOBt and HOAt in a relay fashion. The transformation proceeds in excellent yields using a variety of primary and secondary alkyl and aryl amines. The aldehyde component may be varied from haloaldehydes to epoxy and aziridino aldehydes as well as enals. The latter three substrates provide for a waste-free amide bond forming reaction.
Nesmejanow et al., Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1958, p. 152,154;engl.Ausg.S.143,144
作者:Nesmejanow et al.
DOI:——
日期:——
A Modular Dual‐Catalytic Aryl‐Chlorination of Alkenes
作者:Bo Li、Ala Bunescu、Daniel Drazen、Katherine Rolph、Jean Michalland、Matthew J. Gaunt
DOI:10.1002/anie.202405939
日期:2024.8.19
Alkyl chlorides are a class of versatile building blocks widely used to generate C(sp3)‐rich scaffolds through transformation such as nucleophilic substitution, radical addition reactions and metal‐catalyzed cross‐coupling processes. Despite their utility in the synthesis of high‐value functional molecules, distinct methods for the preparation of alkyl chlorides are underrepresented. Here, we report a visible‐light‐mediated dual catalysis strategy for the modular synthesis of highly functionalized and structurally diverse arylated chloroalkanes via the coupling of diaryliodonium salts, alkenes and potassium chloride. A distinctive aspect of this transformation is a ligand‐design‐driven approach for the development of a copper(II)‐based atom‐transfer catalyst that enables the aryl‐chlorination of electron‐poor alkenes, complementing its iron(III)‐based counterpart that accommodates non‐activated aliphatic alkenes and styrene derivatives. The complementarity of the two dual catalytic systems allows the efficient aryl‐chlorination of alkenes bearing different stereo‐electronic properties and a broad range of functional groups, maximizing the structural diversity of the 1‐aryl, 2‐chloroalkane products.