采用反相高效液相色谱法对克拉霉素合成工艺中关键中间E2',4″-双(三甲基硅)-红霉素A-9-(1-异丙氧环己基)肟、Z-2′,4″-双(三甲基硅)-红霉素A-9-(1-异丙氧环己基)肟和E-2′,4″-双(三甲基硅)-6-甲基红霉素A-9-(1-异丙氧环己基)肟、Z-2′,4″-双(三甲基硅)- 6-甲基红霉素A-9-(1-异丙氧环己基)肟及其相关的6种工艺杂质进行了分离、定性和定量分析。色谱柱为DIKMA公司的Inertsil ODS-3(150 mm×4.6 mm I.d., 5 μm);流动相为乙腈-水(体积比为95∶5),流速1.5 mL/min;检测波长UV 205 nm;柱温40 ℃。在进样量为6~60 μg时具有良好的线性关系并可以基线分离,为研究区域选择性甲基化提供了基础。
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