Large-scale synthesis, design, and structure-activity relationships of khafrefungin are reported. Khafrefungin is an antifungal agent that inhibitsinositolphosphorylceramide (IPC) synthase, an enzyme involved in fungal sphingolipid biosynthesis. Unlike other inhibitors that inhibit the corresponding enzyme in fungi and mammals to the same extent, khafrefungin does not impair sphingolipid synthesis in mammals
[EN] 1 -(CYCLOPENT-2-EN-1 -YL)-3-(2-HYDROXY-3-(ARYLSULFONYL)PHENYL)UREA DERIVATIVES AS CXCR2 INHIBITORS<br/>[FR] DÉRIVÉS DE 1-(CYCLOPENT-2-EN-1-YL)-3-(2-HYDROXY-3-(ARYLSULFONYL)PHÉNYL)-URÉE UTILISÉS COMME INHIBITEURS DE CXCR2
申请人:GLAXOSMITHKLINE IP DEV LTD
公开号:WO2015181186A1
公开(公告)日:2015-12-03
The invention relates to 1-(3-sulfonylphenyl)-3-(cyclopent-2-en-1-yl)urea derivatives, and their use in treating or preventing diseases and conditions mediated by the CXCR2 receptor. In addition, the invention relates to compositions containing the derivatives and processes for their preparation.
A library of 25 novel estrogen analogues were prepared in five to eight steps from mostly commercially available substituted anisoles via bromination, formylation, Corey-Fuchs reaction, elimination, and Sonogashira reaction.
The reaction of vinyl phosphates with iodotrimethylsilane: Synthesis of vinyl iodides from ketones
作者:Koo Lee、David F. Wiemer
DOI:10.1016/s0040-4039(00)60434-3
日期:1993.4
A new method for preparation of vinyl iodides fromketones is described, based on the reaction of vinyl phosphates with iodotrimethylsilane.
基于磷酸乙烯基酯与碘代三甲基硅烷的反应,描述了一种由酮制备碘化乙烯的新方法。
Preparation and reactions of new zincated nitrogen-containing heterocycles
作者:A.S Bhanu Prasad、Thomas M Stevenson、Janakiram Rao Citineni、Valérie Nyzam、Paul Knochel
DOI:10.1016/s0040-4020(97)00427-4
日期:1997.5
of nitrogen-containing iodinated or in some cases brominated heterocycles were converted to the corresponding zincated heterocyclic derivatives by the direct insertion of zinc dust under mild conditions (25 °C to 70 °C, 1–3 h) in a solvent like THF or DMAC. This reaction was extended to the preparation of zincated nucleic acid bases and nucleosides. The reaction of these new zinc reagents toward various