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    • 2. 发明授权
    • Rearranged taxol compounds and method of using in testing of in vivo
activity
    • 重组的紫杉醇化合物和用于体内活性测试的方法
    • US5296506A
    • 1994-03-22
    • US978713
    • 1992-11-19
    • David G. I. KingstonGamini Samaranyake
    • David G. I. KingstonGamini Samaranyake
    • C07D305/14C07D317/70A01N43/02C07D305/00C07D407/00
    • C07D317/70C07D305/14
    • In a preferred embodiment, taxol is treated with mesyl chloride to prepare a taxol derivative with a contracted A-ring, which has comparable activity to taxol in a tubulin depolymerization assay, and which shows cytotoxicity against KB cells in a cell culture assay. In an alternate preferred embodiment, taxol is treated with triethyloxonium tetrafluoroborate (Meerwein's reagent) to produce a taxol derivative with an opened oxetane ring. In another alternate preferred embodiment, reaction of taxol with acetyl chloride yields a taxol derivative in which the oxetane ring is opened and the A-ring is contracted. All of the aforementioned products show in vivo activity in KB cell culture assays. Further, the preferred compounds have different in vivo activities, which makes them ideal to form a range of standards for use in biological testing of other compounds.
    • 在优选的实施方案中,紫杉醇用甲磺酰氯处理以制备具有收缩的A环的紫杉醇衍生物,其在微管蛋白解聚测定中具有与紫杉醇相当的活性,并且在细胞培养测定中显示出对KB细胞的细胞毒性。 在替代的优选实施方案中,用三乙基氧鎓四氟硼酸盐(Meerwein's试剂)处理紫杉醇以产生具有开放的氧杂环丁烷环的紫杉醇衍生物。 在另一个优选的实施方案中,紫杉醇与乙酰氯的反应产生紫杉酚衍生物,其中氧杂环丁烷环被打开并且A环收缩。 所有上述产物在KB细胞培养测定中显示体内活性。 此外,优选的化合物具有不同的体内活性,这使得它们成为形成用于其它化合物的生物测试的一系列标准品的理想选择。
    • 6. 发明授权
    • Water soluble derivatives of taxol
    • 紫杉醇的水溶性衍生物
    • US5278324A
    • 1994-01-11
    • US774107
    • 1991-10-15
    • David G. I. KingstonZhi-Yang Zhao
    • David G. I. KingstonZhi-Yang Zhao
    • A61K31/335C07D305/14
    • C07D305/14
    • Sulfonated 2'-acryloyltaxol and sulfonated 2'-O-acyl acid taxol derivatives are synthesized which have improved water solubility and stability while maintaining bioactivity. In particular, 2'-[(3-sulfo-1-oxopropyl)oxy]taxol sodium salt is synthesized by reacting taxol with acrylic acid, and subsequently reacting the 2'-acryloyltaxol with bisulfite in a Michael reaction. 2'-{[4-((2-sulfoethyl)amino)-1,4-dioxobutyl]oxy}taxol sodium salt and 2'-{[4-((3-sulfopropyl)amino)-1,4-dioxobutyl]oxy}taxol sodium salt are synthesized by reacting 2'-succinyltaxol with the tetrabutylammonium salts of taurine and 3-aminopropyl sulfonic acid, respectively, and subsequently exchanging the ammonium with sodium. Glycol derivatives of 2'-O-acyl acid taxols with improved water solubility are synthesized by reaction of a glycol with 2'-O-acyl acid taxol.
    • 合成了磺化的2'-丙烯酰基紫杉醇和磺化的2'-O-酰基紫杉酚衍生物,其具有改善的水溶性和稳定性,同时保持生物活性。 特别地,通过使紫杉醇与丙烯酸反应合成2' - ((3-磺基-1-氧代丙基)氧基)紫杉酚钠盐,随后在迈克尔反应中使2'-丙烯酰基紫杉醇与亚硫酸氢盐反应。 2' - ((4 - ((2-磺乙基)氨基)-1,4-二氧代丁基)氧基)紫杉醇钠盐和2' - ((4 - ((3-磺丙基)氨基)-1,4-二氧代丁基) 氧基)紫杉醇钠盐分别通过使2'-琥珀酰基紫杉醇与牛磺酸和3-氨基丙基磺酸的四丁基铵盐反应,然后将铵与钠交换而合成。 通过二醇与2'-O-酰基紫杉醇的反应合成具有改善的水溶性的2'-O-酰基丁二酸的二醇衍生物。