[EN] COMPOSITIONS AND METHODS FOR THE TREATMENT OF BACTERIAL INFECTIONS<br/>[FR] COMPOSÉS ET MÉTHODES POUR LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
申请人:CIDARA THERAPEUTICS INC
公开号:WO2018006063A1
公开(公告)日:2018-01-04
Compositions and methods for the treatment of bacterial infections include compounds containing dimers of cyclic heptapeptides conjugated to one or more monosaccharide or oligosaccharide moieties. In particular, compounds can be used in the treatment of bacterial infections caused by Gram-negative bacteria.
Practical selective monohydrolysis of bulky symmetric diesters
作者:Jianjun Shi、Satomi Niwayama
DOI:10.1016/j.tetlet.2017.12.061
日期:2018.2
has been applied to monohydrolysis of several bulkyl symmetric diesters, including diethyl esters, dipropyl esters, and dibutyl esters. A greater proportion of a polar aprotic co-solvent, DMSO, and aqueous KOH appear to help improve the reactivity of bulky diesters compared to the corresponding dimethylesters. The procedure is mild and practical, yielding the corresponding half-esters in high yields
Non‐Bonding 1,4‐Sulphur‐Oxygen Interaction Governs the Reactivity of α‐Ketothioesters in Triphenylphosphine‐Catalyzed Cyclization with Acetylenedicarboxylates
作者:Abhijit Bankura、Jayanta Saha、Rajib Maity、Indrajit Das
DOI:10.1002/adsc.202001376
日期:2021.2.16
1,4‐interaction involving C−S σ* orbital on the sulphuratom and the lone pair of electrons in the electron‐donating oxygen atom. This is apparent from the X‐ray crystallographically determined internuclear distance between the sulphur and ketone (C=O) oxygen atoms (2.71–2.85 Å), which is significantly less than the sum of their van der Waals radii (3.25–3.30 Å). The substitution on the S atom is oriented
Copper(<scp>ii</scp>)-catalyzed cleavage of carbon–carbon triple bond to synthesize 1,2,3-triesterindolizines
作者:Jinwei Sun、Huayou Hu、Fuyao Wang、Hui Wu、Yun Liu
DOI:10.1039/c4ra06048b
日期:——
An efficient Cu(II)-catalyzed carbon–carbontriplebondcleavage protocol for the synthesis of 1,2,3-triesterindolizines via the reaction of pyridines with butynedioates has been developed. This reaction has perfect atom economy and both fragments from the cleaved alkyne are successively incorporated into the products.
Copper(II)-Catalyzed Carbon–Carbon Triple Bond Cleavage of Internal Alkynes for the Synthesis of Annulated Indolizines
作者:Jinwei Sun、Fuyao Wang、Huayou Hu、Xiangshan Wang、Hui Wu、Yun Liu
DOI:10.1021/jo500456d
日期:2014.5.2
Cleavage of C≡C bond in butynedioates via copper(II)-catalyzed reaction has been achieved, leading to the synthesis of benzo[f]pyrido[1,2-a]indole-6,11-diones in high yields by one-pot three-component reactions. In this unprecedented C≡C bond cleavage reaction of internal alkynes, both fragments from the alkyne are successively incorporated into the products.
通过铜(II)催化的反应实现了对丁炔中C≡C键的裂解,从而导致高收率的苯并[ f ]吡啶并[1,2- a ]吲哚-6,11-二酮的单-合成。锅三成分反应。在内部炔烃的这种前所未有的C≡C键裂解反应中,来自炔烃的两个片段均先后结合到产物中。