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    • 1. 发明申请
    • ONE POT SYNTHESIS OF TETRAZOLE DERIVATIVES OF SIROLIMUS
    • 一锅法合成四螺旋四唑衍生物
    • WO2007094886A3
    • 2007-11-29
    • PCT/US2006061909
    • 2006-12-12
    • ABBOTT LABDHAON MADHUPHSIAO CHU-NUNGPATEL SUBHASHBONK PETERCHEMBURKAR SANJAYCHEN YONG
    • DHAON MADHUPHSIAO CHU-NUNGPATEL SUBHASHBONK PETERCHEMBURKAR SANJAYCHEN YONG
    • C07D498/18A61K31/395
    • C07D498/18
    • A single-step, one-pot process to obtain zotarolimus and other rapamycin derivatives on large scale that improves currently available syntheses. In one embodiment, dried rapamycin is dissolved in isopropylacetate . After cooling and 2,6-Lutidine addition, triflic anhydride is slowly added at -30° C. Salts are removed by filtration. Tetrazole, followed by a tert-base diisopropylethylamine is added. After incubation at room temperature, the product is concentrated and purified by a silica gel column using THF/heptane as eluant. The product is collected, concentrated, and purified using an acetone/heptane column. The product-containing fractions are concentrated. The product is dissolved in t-BME and precipitated with heptane. The solids are dissolved in acetone, treated with butylated-hydroxy toluene, and the solution concentrated. The process is repeated twice with acetone to remove solvents. At least one stabilizing agent is added, such as BHT at 0.5% before drying.
    • 大规模获得zotarolimus和其他雷帕霉素衍生物的单步一锅法工艺,改进了目前可用的合成方法。 在一个实施方案中,将干燥的雷帕霉素溶解在乙酸异丙酯中。 冷却并加入2,6-二甲基吡啶后,在-30℃缓慢加入三氟甲磺酸酐。过滤除去盐。 加入四唑,然后加入叔丁基二异丙基乙胺。 在室温下温育后,将产物浓缩并通过硅胶柱使用THF /庚烷作为洗脱液进行纯化。 收集产物,浓缩并使用丙酮/庚烷柱纯化。 含产物的级分被浓缩。 将产物溶解在t-BME中并用庚烷沉淀。 将固体溶于丙酮中,用丁基化羟基甲苯处理,浓缩溶液。 该过程用丙酮重复两次以除去溶剂。 在干燥前加入至少一种稳定剂,例如0.5%的BHT。
    • 2. 发明申请
    • ONE POT SYNTHESIS OF TETRAZOLE DERIVATIVES OF SIROLIMUS
    • SIROLIMUS的四唑衍生物的一个合成
    • WO2007094886A2
    • 2007-08-23
    • PCT/US2006/061909
    • 2006-12-12
    • ABBOTT LABORATORIESDHAON, MadhupHSIAO, Chu-nungPATEL, SubhashBONK, PeterCHEMBURKAR, SanjayCHEN, Young
    • DHAON, MadhupHSIAO, Chu-nungPATEL, SubhashBONK, PeterCHEMBURKAR, SanjayCHEN, Young
    • C07D498/18
    • A single-step, one-pot process to obtain zotarolimus and other rapamycin derivatives on large scale that improves currently available syntheses. In one embodiment, dried rapamycin is dissolved in isopropylacetate . After cooling and 2,6-Lutidine addition, triflic anhydride is slowly added at -30° C. Salts are removed by filtration. Tetrazole, followed by a tert-base diisopropylethylamine is added. After incubation at room temperature, the product is concentrated and purified by a silica gel column using THF/heptane as eluant. The product is collected, concentrated, and purified using an acetone/heptane column. The product-containing fractions are concentrated. The product is dissolved in t-BME and precipitated with heptane. The solids are dissolved in acetone, treated with butylated-hydroxy toluene, and the solution concentrated. The process is repeated twice with acetone to remove solvents. At least one stabilizing agent is added, such as BHT at 0.5% before drying.
    • 单步,一锅法,大规模获得唑他罗莫斯和其他雷帕霉素衍生物,改善目前可获得的合成。 在一个实施方案中,将干燥的雷帕霉素溶解在乙酸异丙酯中。 冷却后加入2,6-二甲基吡啶,在-30℃下缓慢加入三氟甲磺酸酐。过滤除去盐。 加入四唑,然后加入叔 - 碱二异丙基乙胺。 在室温下孵育后,将产物浓缩并通过硅胶柱纯化,使用THF /庚烷作为洗脱剂。 使用丙酮/庚烷柱收集,浓缩和纯化产物。 将含产物的级分浓缩。 将产物溶于t-BME中并用庚烷沉淀。 将固体溶解在丙酮中,用丁基化羟基甲苯处理,浓缩溶液。 用丙酮重复该过程两次以除去溶剂。 在干燥前加入至少一种稳定剂,例如0.5%的BHT。